Wagner, Rüdiger Limnological River Station Schlitz, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;
Wagner, R., & Masteller, E. C. (1992). Lang term population changes of Psychodidae (Diptera) from a stream recovering from sewage effluent and a control stream. Limnologica, 22(2), 105-113.