Sulphide mineralization of micropetrographic composition of coal from the coal seam 610

by Hanak, Bronisława, Kokowska-Pawłowska, Magdalena
Source: 1. 8th Conference on environment and mineral processing, part 2 1. Ostrava : Vysoká škola báňská - Technická univerzita, 2004 1. 80-248-0559-6 1. S.457-461