Reference

Werner Funke, Mechtild Roth-Holzapfel (1991): Animal-coenoses in the "spruce forest" ecosystem (Protozoa, Metazoa-invertebrates): Indicators of alteration in forest-ecosystems. In Esser G. & Overdieck D. (eds) Modern ecology basic and applied aspects – Elsevier Publ., Amsterdam – : 579 - 600.