L'héritage écologique du communisme dans les républiques de l'ex-URSS
1994
Mnatsʻakanyan, Ṛuben |
Environmental surveys
National report of Estonia to UNCED 1992
1992
Lahtmets, Mari |
Profil environnemental du Burkina Faso
1994
Kessler, Jan Joost |
Geerling, Chris |
Danube integrated environmental study phase 1 Hungary : final report
1993
Bögi, Károly |
Csathó, Péter |
Danube integrated environmental study : preliminary study on the pollution of the Danube river and its tributaries in Bulgaria (Phase 1)
1993
Varlev, Ivan |
Tzankov, Nikolai |
Ivanova, Stella |