@inproceedings{sgem2017s01063,
  title = {GEOCHEMICAL RESEARCHES OF THE WESTPHALIAN FROM THE LUBLIN COAL BASIN (POLAND) WITH THE USE OF VARIOUS DIGESTION METHODS},
  author = {Ewa Krzeszowska and Magdalena Kokowska-Pawlowska},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining},
  year = {2017},
  pages = {495-502},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2017/11/s01.063}
}