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Polish Journal of Ecology > 2010 > 58 > 3
Polish Journal of Ecology > 2009 > 57 > 4 > 635-646
Food Policy > 1997 > 22 > 3 > 213-228
Food Policy > 1997 > 22 > 3 > 191-200
Agriculture, Ecosystems and Environment > 1997 > 62 > 2-3 > 169-185