@ARTICLE{Kokowska-Pawlowska_Magdalena_Relationship_2014,
 author={Kokowska-Pawlowska, Magdalena},
 volume={vol. 30},
 number={No 2},
 journal={Gospodarka Surowcami Mineralnymi - Mineral Resources Management},
 howpublished={online},
 year={2014},
 publisher={Komitet Zrównoważonej Gospodarki Surowcami Mineralnymi PAN},
 publisher={Instytut Gospodarki Surowcami Mineralnymi i Energią PAN},
 title={Relationship Between the Content of Hazardous Trace Elements in Coal Lithotypes and their Ashes (405 Coal Seam, U.S.C.B.)},
 URL={http://journals.pan.pl/Content/85924/PDF/kokowska.pdf},
 doi={10.2478/gospo-2014-0021},
}