The Ruhrverband sewage sludge disposal concept in the conflict between European and German standards and regulations

von Evers, P
Veröffentlicht in: Water science and technology : a journal of the International Association on Water Pollution Research (2005)

Integrated water resources management in the Ruhr River Basin, Germany

von Bode, H
Veröffentlicht in: Water science and technology : a journal of the International Association on Water Pollution Research (2003)