@inproceedings{sgem2017s04134,
  title = {SPINELS IN THE FLY ASH OF POWER PLANT RYBNIK (POLAND)},
  author = {Agnieszka Klupa and Zdzislaw Adamczyk and Andrzej Harat},
  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 = {1051-1058},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2017/11/s04.134}
}