Piotr, Wyszomirski; Ferdynand, Gacki; Tadeusz, Szydłak - In: Gospodarka Surowcami Mineralnymi / Mineral Resources … 28 (2012) 1, pp. 5-18
extent. The reason of it is the expansion of domestic branch of ceramic tiles. Larger and larger demand of the Polish … industry of ceramic tiles for feldspar raw materials is covered among others in greater and greater extent by import from … outstandingly undesirable, especially in raw materials for the production of ceramic tiles of the highest quality such as gres …