Ecological restoration in the Dunavat/Dranov region, Danube delta, Romania
1996
Drost, H. J. |
Rijsdorp, A. A. |
Marin, G. |
Drost, H. J.
Explanation to the vegetation map of the Romanian Danube Delta biosphere reserve 1:100 000
1994
Hanganu, J. |
Gridin, M. |
Drost, H. J. |
Chifu, T. |
Stefan, N. |
Sarbu, I. |
Atlas of the Yellow river delta
1997
Liu Gaohuan |
Drost, H. J. |