Weitere, M. (2001). The heterotrophic nanoflagellates in the water column of the River Rhine: Seasonal and spatial dynamics and their position in the food web. Universität zu Köln.
Chicago-viite (17. p.)Weitere, Markus. The Heterotrophic Nanoflagellates in the Water Column of the River Rhine: Seasonal and Spatial Dynamics and Their Position in the Food Web. Germany: Universität zu Köln, 2001.
MLA-viite (8. p.)Weitere, Markus. The Heterotrophic Nanoflagellates in the Water Column of the River Rhine: Seasonal and Spatial Dynamics and Their Position in the Food Web. Universität zu Köln, 2001.
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