검색결과 : 1건
| No. | Article |
|---|---|
| 1 |
Are coal balls rare? A cyclostratigraphic analysis of coal-ball occurrence in North America Raymond A, Lambert LL, Costanza SH International Journal of Coal Geology, 206, 65, 2019 |
| No. | Article |
|---|---|
| 1 |
Are coal balls rare? A cyclostratigraphic analysis of coal-ball occurrence in North America Raymond A, Lambert LL, Costanza SH International Journal of Coal Geology, 206, 65, 2019 |