| Citation | Hölker, F., 1992, Nahrungsbiologie des Kaulbarsches (Gymnocephalus cernua L.) in der Elbe.. M.Sc. Thesis, Univ. Hamburg, Inst. Hydrobiol. Fischereiwiss. 104 p. |
| Ref. | Hölker, F., 1992 |
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| Named Used as Valid | Gymnocephalus cernua |
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