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Yearbook of the Federal Republic of Germany : calendar year 1976
(Federal Institute of Hydrology and the German Research Association, 1980)
Yearbook of the Federal Republic of Germany : calendar year 1978
(Federal Institute of Hydrology and the German Research Association, 1983)
Yearbook of the Federal Republic of Germany : calendar year 1975
(Federal Institute of Hydrology and the German Research Association, 1979)
Yearbook of the Federal Republic of Germany : calendar year 1984
(Federal Institute of Hydrology and the German Research Association, 1987)
Yearbook of the Federal Republic of Germany : calendar year 1986
(Federal Institute of Hydrology and the German Research Association, 1989)
Yearbook of the Federal Republic of Germany : calendar year 1985
(Federal Institute of Hydrology and the German Research Association, 1988)
Yearbook of the Federal Republic of Germany : calendar year 1983
(Federal Institute of Hydrology and the German Research Association, 1986)
Yearbook of the Federal Republic of Germany : calendar year 1981
(Federal Institute of Hydrology and the German Research Association, 1985)
Yearbook of the Federal Republic of Germany : calendar year 1980
(Federal Institute of Hydrology and the German Research Association, 1984)
Yearbook of the Federal Republic of Germany : calendar year 1982
(Federal Institute of Hydrology and the German Research Association, 1986)