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Die Stadt am Fluß : Kehl 14. - 16.11.1975
Maschke, Erich, (1978)
Stream ecology : application and testing of general ecolog. theory ; [based on the proceedings of the Plenary Symposium on the Testing of General Ecolog. Theory in Lot. Ecosystems held in conjunction with the 29. annual meeting of the North American Bentholog. Soc., April 28, 1981, Provo, Utah]
Barnes, James R., (1983)
International watercourses : enhancing cooperation and managing conflict ; proceedings of a World Bank seminar
Salman, Salman M. A., (1998)