Search for: [References = "33. Zdanowski B., Bnińska M., Korycka A., Sosnowska J. 1975 \- The effect of mineral fertilization on ecosystem structure and functioning in lakes of different trophic type. I. The effect of lake fertilization on changes in chemical composition of water and macrophytes, chlorophyll content and primary production in pelagic zone \- Pol. Arch. Hydrobiol. 22\: 217\-232."]

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