Szukana fraza: [Bibliografia = "6. Costanza R., D'Arge R., De Groot R.S., Farberk S., GrassoM., Hannon B., Limburg K., Naeem S., O'Neill R.V., Paruelo J., Raskin R.G., Suttonk P., van den Belt M., 1997, The value of the world's ecosystem services and natural capital, Nature, no. 387, pp. 253\-260."]

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