W. Nümann

Responses of Percid Fishes and Their Habitats to Eutrophication

J. Leach, M. G. Johnson, J. Kelso, 1977 .

The Future of Salmonid Communities in the European Subalpine Lakes

W. Nümann, E. Grimaldi, 1972 .

Percids of Lake Constance, a Lake Undergoing Eutrophication

J. Hartmann, W. Nümann, 1977 .