1
Conference on Energy and Environment in European Economies in Transition : priorities and opportunities for co-operation and integration : proceedings, Prague, 17th-19th June 1992.
Book
2
Düngemittel-, Energie- und Stoffstrombilanzen /
Book
3
Das Umweltaudit: Weiterentwicklung, Probleme und Lösungen in der Praxis, PC Anwendungen : UTECH Berlin: Seminar 1997,46 : Berlin, 17.02.97.
Book
4
Use of economic instruments in environmental policy in Central and Eastern Europe: case studies of Bulgaria, the Czech Republic, Hungary, Poland, Romania, the Slovak Republic, and Slovenia.
Book