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3. Zur Brutpflege einiger Zwergcichliden;Butz;Z. Tierpsychol.,1957
4. The communicative function of pelvic fin flickering in Etroplus maculatus (Pisces, Cichlidae);Cole;Behaviour,1969
5. Notes on fostering experiments with the cichlid fishes, Tilapia sparrmani and Aequidens portalegrensis;Collins;Amer. Zool.,1962