1
German-Egyptian seminar on environmental research : Cairo, March 21 - 23, 1994 /
Book
2
German-Egyptian seminar on environmental research : Cairo, March 21 - 23, 1994 [E-Book] /
3
International environmental economics: theories, models and applications to climate change, international trade and acidification.
Book
4
The mid term review of the European Union's 5. action programme: proceedings : Bruxelles, 15.02.96-16.02.96.
Book