René Itten, MSc ETH

Work at ZHAW

Position

Senior Researcher and Lecturer Life Cycle Assesment Research Group

Focus

• Life Cycle Inventory Modelling and LCA Databases
• Environmentally-extended Input-Output Analysis
• Life Cycle Impact Assessment Methodology
• Production and Transmission of Electricity and Heat
• Photovoltaic Supply Chain

Teaching

• Lead of Module Advanced Life Cycle Assessment, MSc ENR
• Lead of Module Sustainability Assessment, BSc Environmental Engineering
• Modul nachwachsende Rohstoffe (BSc Environmental Engineering)

Experience

• Research Associate
  Life Cycle Assessment Research Group, Zurich University of Applied Sciences
  01 / 2017 - 07 / 2024
• Research Associate
  Life Cycle Assessment Specialist Group, Zurich University of Applied Sciences
  08 / 2015 - 12 / 2016
• Project Manager Life Cycle Assessment (LCA)
  treeze Ltd.
  2012 - 2014
• Project Manager Life Cycle Assessment (LCA)
  ESU-Services Ltd.
  2010 - 2012

Education and Continuing education

Education

• Master of Science (MSc) / Environmental Engineering
  Swiss Federal Institute of Technology (ETH)
  2008 - 2010
• Bachelor of Science (BSc) / Environmental Engineering
  Swiss Federal Institute of Technology (ETH)
  2005 - 2008

Continuing Education

CAS University Didactics
Zurich University of Teacher Education (PHZH)
2019

Network

ORCID digital identifier

ORCID ID: 0000-0003-4253-9226

Social media

LinkedIn

Media presence

Consumer magazine "Kassensturz" Swiss Radio and Television (SRF)

Projects

• Scalable macroAlgae cuLtivation systems for INnovative Applications in the food, cosmetic and construction sectors / Team member / ongoing
• Greengrocer Food Chain Modelling: Nutrition, Processing and Food Waste as Cornerstones of an Enhanced Model for Food System Networks / Team member / ongoing
• PEATLESS – Overcoming barriers for the adoption of alternative substrates with less peat content to support the Green Transition in horticulture / Deputy project leader / ongoing
• NPower – balancing Nitrogen and Phosphorus flows by budgeting at Regional scale / Co-project leader / ongoing
• Spatial sustainable finance: Satellite-based ratings of company footprints in biodiversity and water / Team member / ongoing
• Digitising Environmental Impacts using Geospatial Analytics / Team member / completed
• BioVaR – Assessing and Digitizing Risk Exposure Resulting from Biodiversity Loss / Co-project leader / completed
• Multifuel SOFC system with Maritime Energy Vectors / Project leader / completed
• Life Cycle Inventories of solid fossil fuels / Project leader / completed
• Local food for the future / Team member / completed
• Remote Sensing Metrics for Life Cycle Assessment / Project leader / completed
• Environmental and Social Assessment at Mine Sites using Remote Sensing and Geoinformatics / Team member / completed
• ShopHero / Deputy project leader / completed
• Life Cycle Sustainability Assessment / Project leader / completed
• Integrated Bio-based Materials Value Chains / Team member / completed
• Extending the lifespan of mobile devices / Team member / completed
• Assessment of mineral oil tax relief for synthetic fuels from biological methanation / Deputy project leader / completed
• The Coffee Blockchain – From Field to Cup / Project leader / completed
• Validation of crude and mineral oil life cycle inventory datasets / Deputy project leader / completed
• Regionalised Agricultural Life Cycle Assessment / Project leader / completed
• Secure Management Platform for Shared Process Resources / Team member / completed
• EAT-IT / Team member / completed
• PV2050: Sustainability, market deployment and interaction to the grid – the impacts of advanced PV solutions / Team member / completed
• Robust and affordable process control technologies for improving standards and optimising industrial operations / Team member / completed
• ZHAW Agri-food Database / Team member / completed

Publications

Articles in scientific journal, peer-reviewed

• Bolliger, C., Itten, R. and Stucki, M. (2026) 'From farm to flavor : carbon and biodiversity footprint of the global spice market', Environmental Science & Technology, 60(15), pp. 11421–11433. doi: 10.1021/acs.est.5c04846.
• Frehner, A., Stucki, M. and Itten, R. (2024) 'Are alpine floatovoltaics the way forward? Life-cycle environmental impacts and energy payback time of the worlds' first high-altitude floating solar power plant', Sustainable Energy Technologies and Assessments, 68(103880). doi: 10.1016/j.seta.2024.103880.
• Kröhnert, H., Itten, R. and Stucki, M. (2022) 'Comparing flexible and conventional monolithic building design : life cycle environmental impact and potential for material circulation', Building and Environment, 2022(222), p. 109409. doi: 10.1016/j.buildenv.2022.109409.
• Bieser, J. C. T. et al. (2022) 'Consumer-oriented interventions to extend smartphones' service lifetime', Cleaner and Responsible Consumption, 7(100074). doi: 10.1016/j.clrc.2022.100074.
• Itten, R. et al. (2020) 'Digital transformation - life cycle assessment of digital services, multifunctional devices and cloud computing', The International Journal of Life Cycle Assessment, 25(10), pp. 2093–2098. doi: 10.1007/s11367-020-01801-0.
• Itten, R. and Stucki, M. (2017) 'Highly efficient 3rd generation multi-junction solar cells using silicon heterojunction and perovskite tandem : prospective life cycle environmental impacts', Energies. Edited by J.-M. Nunzi, 10(7), pp. 1–18. doi: 10.3390/en10070841.
• Kuroda, K. et al. (2016) 'Hospital-use pharmaceuticals in Swiss waters modeled at high spatial resolution', Environmental Science & Technology, 50(9), pp. 4742–4751. doi: 10.1021/acs.est.6b00653.

Written conference contributions, peer-reviewed

• Frehner, A., Stucki, M. and Itten, R. (2025) 'Decarbonising maritime shipping through multi-fuel solid oxide fuel cell pathways : synergies and trade-offs between environmental and social sustainability metrics', in 12th International Conference on Life Cycle Management (LCM), Palermo, Italy, 9-12 September 2025. ZHAW Zurich University of Applied Sciences. doi: 10.21256/zhaw-34169.
• Chryssolouris, D. et al. (2024) 'Integrated assessment of E-LCA and S-LCA based on a techno economic assessment of side stream valorization in the brewery industry', in 14th LCA FOOD International Conference, Barcelona, Spain, 8-12 September 2024. ZHAW Zürcher Hochschule für Angewandte Wissenschaften. doi: 10.21256/zhaw-32196.
• Götz, M., Stucki, M. and Itten, R. (2023) 'Environmental impacts of railway tunnel construction & operation : tunnel cross-section vs. traction energy demand', in 11th International Conference on Life Cycle Management (LCM), Lille, France, 6-8 September 2023. Wädenswil: ZHAW Zurich University of Applied Sciences. doi: 10.21256/zhaw-30527.
• Frehner, A. and Itten, R. (2023) 'Life cycle assessment of bio-based materials : environmental impacts of the value chain from cyanobacteria to PHB', in 11th International Conference on Life Cycle Management (LCM), Lille, France, 6-8 September 2023. Wädenswil: ZHAW Zurich University of Applied Sciences. doi: 10.21256/zhaw-30499.
• Chryssolouris, D. et al. (2023) 'Life cycle sustainability assessment of a biorefinery for the valorisation of brewer's spent grain', in 11th International Conference on Life Cycle Management (LCM), Lille, France, 6-7-8 September 2023. Wädenswil: ZHAW Zurich University of Applied Sciences. doi: 10.21256/zhaw-30535.
• Jattke, M. et al. (2020) 'Environmental implications of service life extension of mobile devices', in Otto, S. J. et al. (eds) WEEE plastic characterization and recyclability assessment : a case study for household appliances. Berlin: Fraunhofer IZM, pp. 163–170. doi: 10.21256/zhaw-20808.
• Frischknecht, R. et al. (2018) 'LCA of key technologies for future electricity supply : 68th LCA forum, Swiss Federal Institute of Technology, Zurich, 16 April, 2018', in The International Journal of Life Cycle Assessment. Heidelberg: Springer, pp. 1716–1721. doi: 10.1007/s11367-018-1496-y.
• Stucki, M. et al. (2018) 'Filling the Gap of Overfishing in LCIA: Eco-factors for Global Fish Resources', in SETAC Europe 28th annual meeting, Rome, Italy, 13-17 May 2018. ZHAW Zürcher Hochschule für Angewandte Wissenschaften. doi: 10.21256/zhaw-5017.
• Keller, R., Itten, R. and Stucki, M. (2018) 'Environmental benefits of a circular economy : connecting waste type and geographic proximity', in SETAC Europe 28th annual meeting, Rome, Italy, 13-17 May 2018. ZHAW Zürcher Hochschule für Angewandte Wissenschaften. doi: 10.21256/zhaw-5015.
• Jaisli, I. et al. (2018) 'Scientainment for sustainability : the eco-confessional as new approach for awareness raising', in 1st Life Cycle Innovation Conference (LCIC), Berlin, 29-31 August 2018.
• Frischknecht, R. et al. (2017) 'LCA of mobility solutions: approaches and findings : 66th LCA forum, Swiss Federal Institute of Technology, Zurich, 30 August, 2017', in The International Journal of Life Cycle Assessment. Heidelberg: Springer, pp. 381–386. doi: 10.1007/s11367-017-1429-1.
• Stucki, M. and Itten, R. (2017) 'High efficient 3rd generation multi-junction solar cells using silicon heterojunction and perovskite technology : life cycle based environmental impacts', in Life Cycle Management (LCM) 2017, Luxembourg, 3.-6. September 2017. ZHAW Zürcher Hochschule für Angewandte Wissenschaften. doi: 10.21256/zhaw-4833.
• Itten, R., Stucki, M. and Steinegger, T. (2017) 'Wooden mounting systems : how to reduce environmental impacts of building integrated photovoltaic power plants', in Life Cycle Management (LCM) 2017, Luxembourg, 3.-6. September 2017.
• Koller, C. et al. (2016) 'Carbon footprint of a PV/T liquid collector', in 26. Symposium Thermische Solarenergie : 20. bis 22. April 2016, Kloster Banz, Bad Staffelstein. Bad Staffelstein: Ostbayerisches Technologie-Transfer-Institut.

Other publications

• Itten, R. et al. (2023) Life Cycle Inventories of solid fossil fuels : updates for electricity generation from hard coal, lignite and peat. Wädenswil: ZHAW Zürcher Hochschule für Angewandte Wissenschaften. doi: 10.21256/zhaw-30218.
• Keller, R., Stucki, M. and Itten, R. (2023) Projekt Digitale Suffizienz : Ökobilanzbericht zur Nutzung digitaler Geräte durch Jugendliche in der Schweiz. Wädenswil: ZHAW Zürcher Hochschule für Angewandte Wissenschaften. doi: 10.21256/zhaw-26925.
• Frehner, A., Itten, R. and Stucki, M. (2022) Life cycle assessment of bio-based materials : environmental impacts of the value chain from cyanobacteria to PHB. Wädenswil: ZHAW Zürcher Hochschule für Angewandte Wissenschaften. doi: 10.21256/zhaw-26461.
• Itten, R. and Stucki, M. (2022) Ökofaktoren für marine Fischressourcen in Ökobilanzen. Wädenswil: ZHAW Zürcher Hochschule für Angewandte Wissenschaften. doi: 10.21256/zhaw-2650.
• Itten, R. and Stucki, M. (2022) Ökofaktoren für marine Fischressourcen : digitaler Anhang. Wädenswil: ZHAW Zürcher Hochschule für Angewandte Wissenschaften. doi: 10.21256/zhaw-24769.
• Gassmann, R. and Itten, R. (2022) 'Kundenbindung durch Blockchain : führen mehr Transparenz und mehr Möglichkeiten zur Mitbestimmung zu einer verstärkten Kundenbindung?', Logistics Innovation, 2021(2), pp. 10–13. doi: 10.21256/zhaw-24790.
• Lütolf, P. and Itten, R. (2022) 'CoffeeCoin macht Kaffee transparenter', Foodaktuell, 1, pp. 30–31. Available at: https://www.foodaktuell.ch/2021/12/16/coffeecoin-macht-kaffee-transparenter.
• Bionda, D. et al. (2021) SYGREN : Systemkennwerte Graue Energie Gebäudetechnik. Bern: Bundesamt für Energie BFE. Available at: https://www.aramis.admin.ch/Default?DocumentID=67175&Load=true.
• Itten, R., Stucki, M. and Glauser, L. (2021) Life cycle assessment of artificial and natural turf sports fields : executive summary. Wädenswil: ZHAW Zürcher Hochschule für Angewandte Wissenschaften. doi: 10.21256/zhaw-21510.
• Itten, R., Glauser, L. and Stucki, M. (2020) Ökobilanzierung von Rasensportfeldern : Natur-, Kunststoff- und Hybridrasen der Stadt Zürich im Vergleich. Wädenswil: ZHAW Zürcher Hochschule für Angewandte Wissenschaften. doi: 10.21256/zhaw-20774.
• Stucki, M. and Itten, R. (2018) 'Power-to-Gas für den Klimaschutz : wie umweltfreundlich ist synthetisches Methan?', Aqua & Gas, 9, pp. 15–19.
• Frischknecht, R. et al. (2015) Life cycle inventories and life cycle assessment of photovoltaic systems. International Energy Agency - Photovoltaic Power Systems Programme. Available at: http://www.iea-pvps.org/fileadmin/dam/public/report/technical/IEA-PVPS_Task_12_LCI_LCA.pdf.
• Frischknecht, R. et al. (2015) Life cycle assessment of future photovoltaic electricity production from residential-scale systems operated in Europe. St.Ursen: International Energy Agency - Photovoltaic Power Systems Programme. Available at: http://iea-pvps.org/index.php?id=314&eID=dam_frontend_push&docID=2391.

Oral conference contributions and abstracts

• Stucki, M., Frehner, A. and Itten, R. (2025) 'Decarbonising maritime shipping through multi-fuel solid oxide fuel cell pathways : synergies and trade-offs between environmental and social sustainability metrics', in 12th International Conference on Life Cycle Management (LCM), Palermo, Italy, 9-12 September 2025.
• Götz, M., Itten, R. and Terzer, E. (2025) 'Global biodiversity footprints of agricultural production systems : comparing the biodiversity impacts of staple and luxury food crops', in 12th International Conference on Life Cycle Management (LCM), Palermo, Italy, 9-12 September 2025.
• Frehner, A., Itten, R. and Stucki, M. (2024) 'The challenge of integrating the triple bottom line : LCSA of a multi-fuel propulsion system for sustainable shipping', in 88th LCA Discussion Forum Frontiers in Life Cycle Sustainability Assessment – How can Life Cycle Thinking embrace the Triple Bottom Line?, Wädenswil, Switzerland, 22 November 2024. Available at: https://video.ethz.ch/events/lca/2024/autumn/88th/17a26c55-7457-4369-bf5d-a89bd7b2168f.html.
• Götz, M. and Itten, R. (2024) 'Biodiversity footprints of EV battery technologies : comparing the biodiversity impacts of mineral & metal mining', in 4th Life Cycle Innovation Conference (LCIC), Berlin, Germany (hybrid), 3 - 5 July 2024.
• Götz, M. et al. (2023) 'Life cycle approaches for biodiversity impacts of mining and resource extraction : combining remote sensing and life cycle assessment', in World Resources Forum, Geneva, Switzerland, 4-6 September 2023.
• Itten, R., Götz, M. and Kröhnert, H. (2023) 'Remote sensing based data products for large scale life cycle inventory models', in 11th International Conference on Life Cycle Management (LCM), Lille, France, 6-8 September 2023.
• Frehner, A., Itten, R. and Stucki, M. (2023) 'Decarbonizing maritime shipping : life cycle sustainability assessment of a multi-fuel capable propulsion system based on solid oxide fuel cell technology', in 11th International Conference on Life Cycle Management (LCM), Lille, France, 6-8 September 2023.
• Burkhalter, L. and Itten, R. (2023) 'Ein längeres Leben für Smartphones & Co', in ZHAW sustainable Lunch, online, 24. April 2023.
• Itten, R. and Kägi, T. (2022) 'Life cycle assessment of artificial turf : importance of microplastics', in 82nd Cycle Assessment Discussion Forum (LCA DF), Zurich, Switzerland, 4 November 2022. Available at: https://lca-forum.ch/fileadmin/generic_lib/Resources/Public/Downloads/DF82/11_Itten.pdf.
• Itten, R., Jattke, M. and Bieser, J. (2022) 'Repair services and their rebound effects', in 81st Life Cycle Assessment Discussion Forum (LCA DF), Wädenswil, Switzerland, 15 September 2022.
• Itten, R., Glauser, L. and Stucki, M. (2022) 'Artificial versus natural turf sports fields : life cycle environmental impacts', in INUAS Conference 2022 'Urban Transformations: Public Spaces', Winterthur, Switzerland, 7-9 September 2022.
• Itten, R., Jattke, M. and Bieser, J. (2022) 'Minimising rebound effects of lifetime extension : sustainable business models for mobile, internet-enabled devices', in 3rd Life Cycle Innovation Conference (LCIC), Berlin, Germany (hybrid), 29 June - 1 July 2022.
• Itten, R., Glauser, L. and Stucki, M. (2022) 'Life cycle assessment of turf sports fields', in Europe, Middle East and Africa Synthetic Turf Council (ESTC) Congress, Nice, France, 31 March 2022.
• Itten, R. et al. (2021) 'Direct and indirect environmental effects of service lifetime extension of mobile internet enabled devices', in 10th International Conference on Life Cycle Management (LCM), virtual, 5-8 September 2021. Available at: https://lcm2021-media.org/document/direct-and-indirect-environmental-effects-of-service-lifetime-extension-of-mobile-internet-enabled-devices/.
• Jattke, M. et al. (2021) 'Using blockchain to change the way we manage life cycle data for coffee supply chains', in 10th International Conference on Life Cycle Management (LCM), virtual, 5-8 September 2021. Available at: https://lcm2021-media.org/document/using-blockchain-to-change-the-way-we-manage-life-cycle-data-for-coffee-supply-chains/.
• Itten, R. et al. (2020) 'Merging photovoltaic panels and solar thermal collectors : how photovoltaic thermal (PVT) hybrid collectors boost environmental performance', in 37th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Online, 7-11 September 2020.
• Itten, R. et al. (2020) 'Blockchain in agro-food business : boosting transparency and trust in the coffee value chain with distributed ledgers', in 2nd Life Cycle Innovation Conference (LCIC), Online, 26-28 August 2020.
• Jattke, M. et al. (2020) 'Environmental implications caused by disruptive business models for service life extension of mobile devices', in 2nd Life Cycle Innovation Conference (LCIC), Online, 26-28 August 2020.
• Jattke, M., Itten, R. and Stucki, M. (2020) 'Sustainable business models to extend the lifetime of mobile internet-enabled devices', in 74th LCA Discussion Forum on Life Cycle Assessment, online, 29 June 2020.
• Itten, R. et al. (2019) 'Active façades : life cycle environmental impacts and savings of photovoltaic power plants integrated into the building envelope', in 36th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Marseille, France, 9-13 September 2019.
• Itten, R. et al. (2019) 'Active façades : life cycle environmental impacts and savings of photovoltaic power plants integrated into the building envelope', in 9th International Conference on Life Cycle Management, Poznan, Poland, 1-4 September 2019.
• Stahel, V., Itten, R. and Stucki, M. (2018) 'Integration of photovoltaic power plants into the grid : life cycle environmental impacts of infrastructure adaptations for photovoltaic electricity', in 35th European Photovoltaic Solar Energy Conference and Exhibition (EU PVSEC), Brussels, Belgium, 24-27 September 2018. Available at: https://userarea.eupvsec.org/proceedings/35th-EU-PVSEC-2018/5EO.1.5/.
• Itten, R. and Stucki, M. (2018) 'Transformation of waste to resources : life cycle based benefits of the circular economy', in 1st Life Cycle Innovation Conference (LCIC), Berlin, 29-31 August 2018.
• Itten, R., Keller, R. and Stucki, M. (2018) 'The Generation Z and the environmental impact of their digital media behaviour', in 1st Life Cycle Innovation Conference (LCIC), Berlin, 29-31 August 2018.
• Itten, R. and Stucki, M. (2018) 'Highly efficient multi-junction solar cells using silicon heterojunction and perovskite tandem : prospective life cycle environmental impacts', in 68th LCA Discussion Forum on Life Cycle Assessment, Zürich, 16. April 2018. Available at: http://www.lcaforum.ch/portals/0/df68/DF68-12_Itten.pdf.
• Wettstein, S., Itten, R. and Stucki, M. (2017) 'Environmental impacts of the CO2 methanation value chain : implications on mobility with passenger cars', in 66th LCA Discussion Forum: LCA of Mobility Solutions: Approaches and Findings, Zürich, 30. August 2017. Available at: http://www.lcaforum.ch/portals/0/df66/DF66-13_Itten.pdf.
• Itten, R. (2016) 'Industrial symbiosis and LCA', in 63rd LCA Discussion Forum: How can LCA support the Circular Economy?, Zurich, 30 November 2016.

Publications before appointment at the ZHAW

• Frischknecht R., Nathani C., Stolz P., Wyss F. and Itten R. (2015) Extension of a Disaggregated Input-Output Table with Environmental Data for the Year 2008. treeze Ltd / Rütter Soceco AG, commissioned by the Swiss Federal Office for the Environment (FOEN), Uster / Rüschlikon.
• Frischknecht R., Nathani C., Büsser Knöpfel S., Itten R., Wyss F. and Hellmüller P. (2014) Entwicklung der weltweiten Umweltauswirkungen der Schweiz; Umweltauswirkungen von Konsum und Produktion von 1996 bis 2011. treeze Ltd / Rütter Soceco AG, commissioned by the Swiss Federal Office for the Environment (FOEN), Uster / Rüschlikon.
• Frischknecht R., Nathani C., Büsser Knöpfel S., Itten R., Wyss F. and Hellmüller P. (2014) Technischer Bericht Gesamtumweltbelastung Schweiz. treeze Ltd / Rütter Soceco AG, commissioned by the Swiss Federal Office for the Environment (FOEN), Uster / Rüschlikon.
• Frischknecht R. and Itten R. (2014) PEFCR photovoltaic electricity generation. treeze Ltd. commissioned by Technical Secretariat PEF Pilot "Photovoltaic Electricity Generation", Uster, Switzerland.
• Itten R., Wyss F. and Frischknecht R. (2014) LCI of the global crystalline photovoltaics supply chain and of future photovoltaics electricity production. treeze Ltd., Uster, Switzerland.
• Itten R., Frischknecht R. and Stucki M. (2014) Life Cycle Inventories of Electricity Mixes and Grid, Version 1.3. treeze Ltd., Uster, Switzerland, retrieved from: www.treeze.ch.
• Itten R. and Frischknecht R. (2014) Primärenergiefaktoren von Energiesystemen, Version 2.2+, Stand April 2014. Im Auftrag des Bundesamt für Umwelt BAFU und der Koordinationskonferenz der Bau- und Liegenschaftsorgane der öffentlichen Bauherren KBOB, Uster, CH, retrieved from: www.treeze.ch.
• Wyss F., Frischknecht R., Itten R., Pfäffli K. and John V. (2014) Richtwert Gesamtumweltbelastung Gebäude - Entwurf. Bundesamt für Energie, BfE Bundesamt für Umwelt BAFU Amt für Hochbauten Stadt Zürich AHB.
• Wyss F., Frischknecht R. and Itten R. (2014) Hintergrundbericht zur Aktualisierung der Materialdaten der KBOB-Liste, v2.2+ Stand 2014. Bundesamt für Umwelt BAFU, Koordinationskonferenz der Bau- und Liegenschaftsorgane der öffentlichen Bauherren KBOB
• Itten R. and Frischknecht R. (2013) Externe Kosten von Energiesystemen gemäss ECOPLAN. treeze Ltd., Uster, CH
• Frischknecht R., Büsser Knöpfel S. and Itten R. (2013) Indicators on Global Environmental Impacts Related to Domestic Consumption. treeze Ltd., Uster, CH.
• Jungbluth N. and Itten R. (2012) Umweltbelastungen des Konsums in der Schweiz und in der Stadt Zürich: Grundlagendaten und Reduktionspotenziale, . Energieforschung der Stadt Zürich, Bericht Nr. 8, Forschungsprojekt FP-1.1, Zürich.
• Jungbluth N., Itten R. and Stucki M. (2012) Umweltbelastungen des privaten Konsums und Reduktionspotenziale. ESU-services Ltd. im Auftrag des BAFU, Uster, CH, retrieved from: http://www.esu-services.ch/projects/lifestyle/.
• Itten R., Jungbluth N. and Stucki M. (2011) Life Cycle Assessment of Burning Different Solid Biomass Substrates. im Auftrag des Bundesamtes für Energie BfE, ESU-services Ltd., Uster, retrieved from: http://www.esu-services.ch/publications/energy/.
• Stucki M., Büsser S., Itten R., Frischknecht R. and Wallbaum H. (2011) Comparative Life Cycle Assessment of Geosynthetics versus Conventional Construction Material. ESU-services Ltd. commissioned by European Association for Geosynthetic Manufacturers (EAGM), Uster and Zürich, CH.
• Frischknecht R. and Itten R. (2011) Primärenergiefaktoren von Energiesystemen, Version 2.2. im Auftrag des Bundesamtes für Energie BfE, ESU-services Ltd., Uster, CH, retrieved from: http://www.esu-services.ch/publications/energy/.
• Frischknecht R., Stucki M. and Itten R. (2011) Primärenergiefaktoren von Transportsystemen, Version 2.2. im Auftrag des Bundesamtes für Energie BfE, ESU-services Ltd., Uster, CH, retrieved from: http://www.esu-services.ch/publications/energy/.

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