@inproceedings{sgem2018s03071,
  title = {MANAGERIAL VIEW OF THE DEPENDENCE OF SELECTED RAW MATERIALS ON EXTERNAL CONDITIONS},
  author = {Jakub Chlopecký},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Science and Technologies in Geology, Exploration and Mining},
  year = {2018},
  pages = {553-560},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2018/1.3/s03.071}
}