@inproceedings{sgem2021s20021,
  title = {EFFECT OF PREPARATION PROCEDURE ON FORMATION OF CERIUM AND MANGANESE OXIDES},
  author = {Gloria Issa and Radostina Ivanova and Momtchil Dimitrov and Danielav Kovacheva and Tanya Hristova-Tsoncheva},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Ecology, Economics, Education and Legislation},
  year = {2021},
  pages = {99-106},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2021/5.1/s20.021}
}