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Originally published in 1919
Detmar -- Wie sozial ist die europäische Sozialpolitik
Als erstes
and the effort has been not to be too closely identified with any ideology
denen der Leser nicht widerstehen kann und die ihn fast in den Wahnsinn treiben
The Dynamics and Use of Lacustrine Ecosystems J. Koerting Originally published in 1919Limnology is increasingly concerned with water supply and the relation of man to aquatic environments. Without the continued availability of pure water, all progress in technology and other fields of human life will be to no avail. The global problems concerning clear water are already extremely pressing. More limnology knowledge is needed to solve these problems. The responsibility of man to save water and to take more intensive care of the
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