@inproceedings{sgem2021s1808,
  title = {THE EVALUATION OF NA2O2 AS A SINTERING AGENT IN SOLID STATE DISSOLUTION OF POTENTIAL SECONDARY SOURCES FOR RARE EARTH ELEMENTS},
  author = {Laurentiu Valentin Soroaga and Cecilia Arsene and Romeo Iulian Olariu},
  booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Energy and Clean Technologies},
  year = {2021},
  pages = {41-48},
  publisher = {STEF92 Technology},
  doi = {10.5593/sgem2021v/4.2/s18.08}
}