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Roczniki Inżynierii Budowlanej > 2011 > z. 11 > 53--58
Polish Journal of Ecology > 2011 > 59 > 2
Polish Journal of Ecology > 2011 > 59 > 1
Ecological Chemistry and Engineering. S > 2011 > Vol. 18, nr 2 > 171-183
Ecological Chemistry and Engineering. S > 2011 > Vol. 18, nr 1 > 55-65
Archives of Environmental Protection > 2011 > Vol. 37, no. 1 > 25-32
Archives of Environmental Protection > 2011 > Vol. 37, no. 2 > 123-129
Archives of Environmental Protection > 2011 > Vol. 37, no. 3 > 79-85