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Ecological Chemistry and Engineering. A > 2011 > Vol. 18, nr 4 > 563-569
Górnictwo i Geoinżynieria > 2010 > R. 34, z. 4/1 > 93-104
Ecological Chemistry and Engineering. A > 2011 > Vol. 18, nr 4 > 563-569
Górnictwo i Geoinżynieria > 2010 > R. 34, z. 4/1 > 93-104