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Ground-water resources exploration and its significance for the development of the national economy of the German Democratic Republic
Glander, H.; Weder, H. -J. - 1977
Persistent link: https://www.econbiz.de/10002448687
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Rational use of ground water resources in the German Democratic Republic : problems and ways of solving them
Lauterbach, D. - 1977
Persistent link: https://www.econbiz.de/10003223330