Rare earth and radioactive elements in some coals from the Sofia, Svoge and Pernik Basins, Bulgaria

✍ Scribed by Jordan Kortenski; Svetlozar Bakardjiev

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 442 KB
• Volume: 22
• Category: Article
• ISSN: 0166-5162
• DOI: 10.1016/0166-5162(93)90028-9