Muntschik, O.R.

Muntschik, O.R. & Geisecke, D.E.Hydrologis, 1973. Surface water treatment and its optimization by a special filtering technique, Geisecke, Germany: Hydrologische Forschungsstation der Dortmunder Stadtwerke. Available at: https://nl.ircwash.org/sites/default/files/255.2-73SU.pdf.