Search for: [References = "16. Klekowski R. Z., Fischer E., Fischer Z., Ivanova B., Prus T., Shushkina E. A., Stachurska T., Stępień Z. Żyromska\-Rudzka H. 1972 \- Energy budgets and energy transformation efficiencies of several animal species of different feeding types \(In\: Productivity problems of freshwaters, Eds. Z. Kajak, A. Hillbricht\-Ilkowska\) \- PWN \- Polish Scientific Publishers, Warszawa\-Kraków, 749\-763."]

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