@ARTICLE{Botor_Dariusz_Timing_2014,
 author={Botor, Dariusz},
 volume={vol. 30},
 number={No 1},
 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={Timing of coalification of the upper carboniferous sediments in the upper silesia coal basin on the basis of by apatite fission track and helium dating},
 URL={http://journals.pan.pl/Content/85904/PDF/botor.pdf},
 doi={10.2478/gospo-2014-0010},
}