Szukana fraza: [Bibliografia = %227. De Groot R.S.%2C Wilson M.A.%2C Boumans R.M.J.%2C 2002%2C A typology for the classification%2C description and valuation of ecosystem functions%2C goods and services%2C Ecological Economics%2C no. 41%2C pp. 393%5C-408.%22]

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