@inproceedings{sgem2013s04004,
  title = {CHEMICAL AND MINEROLOGICAL CHARACTERIZATIONS OF THE OLTU STONE (TURKISH BLACK AMBER), ERZURUM, TURKEY},
  author = {Ozen, Tugbanur and Bilgin, Oyku and Caglar, Meral},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING},
  year = {2013},
  pages = {559 - 566 pp},
  publisher = {Stef92 Technology},
  doi = {10.5593/sgem2013/ba1.v2/s04.004}
}