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Polish Journal of Ecology > 2010 > 58 > 1
Polish Journal of Ecology > 2005 > 53 > 4
Polish Journal of Ecology > 2004 > 52 > 3
Polish Journal of Environmental Studies > 2000 > 9 > 6 > 471-474
Polish Journal of Ecology > 2010 > 58 > 1
Polish Journal of Ecology > 2005 > 53 > 4
Polish Journal of Ecology > 2004 > 52 > 3
Polish Journal of Environmental Studies > 2000 > 9 > 6 > 471-474