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Gospodarka Surowcami Mineralnymi > 2005 > T. 21, z. 1 > 73-87
Archives of Mining Sciences > 2001 > Vol. 46, nr 2 > 119-137
Archives of Mining Sciences > 2001 > Vol. 46, nr 2 > 103-118
Gospodarka Surowcami Mineralnymi > 2005 > T. 21, z. 1 > 73-87
Archives of Mining Sciences > 2001 > Vol. 46, nr 2 > 119-137
Archives of Mining Sciences > 2001 > Vol. 46, nr 2 > 103-118