검색결과 : 3건
| No. | Article |
|---|---|
| 1 |
Exogenic microbial activity in coals Yossifova MG, Valceva SP, Nikolova SF Fuel Processing Technology, 92(4), 825, 2011 |
| 2 |
Petrology, mineralogy, and geochemistry of submarine coals and petrified forest in the Sozopol Bay, Bulgaria Yossifova MG, Eskenazy GM, Valceva SP International Journal of Coal Geology, 87(3-4), 212, 2011 |
| 3 |
Geochemistry of beryllium in the Mariza-east lignite deposit (Bulgaria) Eskenazy GM, Valceva SP International Journal of Coal Geology, 55(1), 47, 2003 |