Danube integrated environmental study phase 1 : report from the expert group of Czech republic 1993 Barinková, Pavlína | Bíza, Pavel | Jelínková, Jana | Nerudová, Marie |
Danube integrated environmental study phase 1 : final report for the republic of Croatia 1993 Villi, Miroslav |
Danube integrated environmental study phase 1 : report from the expert group of Romania 1993 Varduca, A. |