Mineral forms of inorganic substance in the brown coal of Belchatów

by Stachura, Elżbieta
Source: 1. Mineralia slovaca 1. ISSN 0369-2086 1. Roč. 34, č. 1 (2002)
2. [Príl.] Geovestník 2. ISSN 0369-2086 2. Č. 1 (2002), s. 12

The minerals associated with coal

by Rainbow, A.K.M, Shpirt, M.Ia
Source: 1. New trends in mineral processing IV, part I 1. Ostrava : Vysoká škola báňská - Technická univerzita, 2001 1. 80-7078-885-2 1. S. 137-141