Weidema B P, Christiansen K, Wernet G – 2013 Radically reducing the costs of panel critical reviews according to ISO 14040. Presentation for 6th International Conference on Life Cycle Management, Gothenburg 2013.08.25-28.
Christiansen K, Weidema B P, Hauschild M – 2009 Livscyklusvurderinger – en kommenteret oversættelse af ISO 14040 og 14044. Charlottenlund: Dansk Standard. (DS-Håndbog 126:2009).
Zackrisson M, Rocha C, Christiansen K, Jarnehammar A – 2008 Stepwise environmental product declarations: ten SME case studies. Journal of Cleaner Production 16(17):1872-1886.
Weidema B P, Wesnæs M, Christiansen K, Koneczny K – 2006 Life-cycle based cost-benefit assessment of waste management options. Presentation for ISWA Annual Congress 2006, Copenhagen, 2006.10.1-5. The full report from this study has been edited and published by the EU Commission.
Christiansen K, Rocha C – 2006 Integrated Management Systems and Tools. Pp. 22-36 in Jensen A A, Remmen A (eds.) (2004 revised in 2006): Background Report for a UNEP Guide to Life Cycle Management - A bridge to sustainable products. United Nations Environmental Programme, Paris.
Coakley T, O'Leary E, Wejdling H, Christiansen K – 2006 The HAZTRAIN hazardous waste identification tool (HWIT). Presentation for ISWA Annual Congress 2006, Copenhagen, 2006.10.1-5
Finkbeiner M, Inaba A, Tan R, Christiansen K, Klüppel H-J – 2006 The new international standards for life cycle assessment: ISO 14040 and ISO 14044. International Journal of Life Cycle Assessment 11(2):80-85
Christiansen K, Wesnæs M, Weidema B P – 2006 Consumer demands on Type III environmental declarations. Report commissioned by ANEC - the consumer voice in standardisation.
Weidema B P, Christiansen K, Nielsen A M, Norris G A, Notten P, Suh S, Madsen J – 2005 Prioritisation within the integrated product policy. Environmental project no. 980. Copenhagen: Danish Environmental Protection Agency.
Christiansen K – 2004 Background paper on environmental and risk aspects of nanotechnology. Copenhagen: Ministry of Science, Technology and Innovation.
Nielsen A M, Christiansen K, Weidema B P – 2003 Prioritisation of product groups and product areas in the integrated product policy. Seminar-proceedings.
Jerlang J, Christiansen K, Weidema B P, Jensen A A, Hauschild M – 2001 Livscyklusvurderinger – en kommenteret oversættelse af ISO 14040 til 14043. Charlottenlund: Dansk Standard. (DS-Håndbog 126:2001). ISBN 87-7310-270-9