Reference author: Christoph Helbig

Cimprich, A. ., Bach, V. ., Helbig, C. ., Thorenz, A. ., Schrijvers, D. ., Sonnemann, G. ., Young, S. B., Sonderegger, T. ., & Berger, M. . (2019). Raw material criticality assessment as a complement to environmental life cycle assessment: Examining methods for product-level supply risk assessment. Journal of Industrial Ecology, 23. https://doi.org/10.1111/jiec.12865

Cimprich, A. ., Young, S. B., Helbig, C. ., Gemechu, E. D., Thorenz, A. ., Tuma, A. ., & Sonnemann, G. . (2017). Extension of geopolitical supply risk methodology: Characterization model applied to conventional and electric vehicles. Journal of Cleaner Production, 162. https://doi.org/10.1016/j.jclepro.2017.06.063

Helbig, C. ., Gemechu, E. D., Pillain, B. ., Young, S. B., Thorenz, A. ., Tuma, A. ., & Sonnemann, G. . (2016). Extending the geopolitical supply risk indicator: Application of life cycle sustainability assessment to the petrochemical supply chain of polyacrylonitrile-based carbon fibers. Journal of Cleaner Production, 137. https://doi.org/10.1016/j.jclepro.2016.07.214

Berger, M. ., Sonderegger, T. ., Alvarenga, R. ., Bach, V. ., Cimprich, A. ., Dewulf, J. ., Frischknecht, R. ., ee, J. G., Helbig, C. ., Huppertz, T. ., Jolliet, O. ., Motoshita, M. ., Northey, S. ., Pe\~na, C. A., Rugani, B. ., Sahnoune, A. ., Schrijvers, D. ., Schulze, R. ., Sonnemann, G. ., Valero, A. ., Weidema, B. P., & Young, S. B. (2020). Mineral resources in life cycle impact assessment: part II \textendash recommendations on application-dependent use of existing methods and on future method development needs. The International Journal of Life Cycle Assessment. https://doi.org/10.1007/s11367-020-01737-5

Sonderegger, T. ., Berger, M. ., Alvarenga, R. ., Bach, V. ., Cimprich, A. ., Dewulf, J. ., Frischknecht, R. ., ee, J. G., Helbig, C. ., Huppertz, T. ., Jolliet, O. ., Motoshita, M. ., Northey, S. ., Rugani, B. ., Schrijvers, D. ., Schulze, R. ., Sonnemann, G. ., Valero, A. ., Weidema, B. P., & Young, S. B. (2020). Mineral resources in life cycle impact assessment\textemdashpart I: a critical review of existing methods. The International Journal of Life Cycle Assessment. https://doi.org/10.1007/s11367-020-01736-6