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Ryberg A, Ekvall T, Person L, Weidema B P – 1998 Life cycle assessment on packaging systems for beer and soft drinks. Aluminium cans. Copenhagen: Danish Environmental Protection Agency. (Environmental Project 402)
Person L, Ekvall T, Weidema B P – 1998 Life cycle assessment on packaging systems for beer and soft drinks. Disposable PET bottles. Copenhagen: Danish Environmental Protection Agency. (Environmental Project 405)
Person L, Ekvall T, Weidema B P – 1998 Life cycle assessment on packaging systems for beer and soft drinks. Refillable PET bottles. Copenhagen: Danish Environmental Protection Agency. (Environmental Project 404)
Weidema B P, Wesnæs M, Erichsen H L, Rydberg T, Eriksson E, Person L, Frees N – 1997 Life cycle assessment on packaging systems for beer and soft drinks. Report A: Definition of goal and scope. Results of preliminary investigation. 116 pages, unpublished