@ARTICLE{Wagner_Marian_The_2013, author={Wagner, Marian}, volume={vol. 29}, number={No 4}, journal={Gospodarka Surowcami Mineralnymi - Mineral Resources Management}, howpublished={online}, year={2013}, publisher={Komitet Zrównoważonej Gospodarki Surowcami Mineralnymi PAN}, publisher={Instytut Gospodarki Surowcami Mineralnymi i Energią PAN}, title={The geological aspects of meta-lignite and sub-bituminous coal occurrences in Poland within the context of deposits and uneconomic occurrences in Europe}, URL={http://www.journals.pan.pl/Content/85863/PDF/wagner.pdf}, doi={10.2478/gospo-2013-0046}, }