@inproceedings{sgem2018s28129,
  title = {PLANNING THE SALE OF HARD COAL IN A MINING ENTERPRISE. PROBLEMS AND SYSTEMIC SOLUTIONS},
  author = {Patrycja Bąk},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Ecology, Economics, Education and Legislation},
  year = {2018},
  pages = {1015-1024},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2018/5.3/s28.129}
}