Proc. of the 5. Internat. Workshop of the Scientific Committee of Pesticides of the Internat. Association on Occupational Health, the Hague the Netherlands, October 9-11, 1979
(1980)
Proceedings of the Symposium Agrohydrology at the International Agricultural Centre IAC Wageningen, The Netherlands, 29 September-1 October 1987
(1988)
Proceedings of the Symposium Agrohydrology at the International Agricultural Center IAC, Wageningen, The Netherlands, 29 September-1 October 1987
(1988)
