검색결과 : 1건
| No. | Article |
|---|---|
| 1 |
Organic petrographic investigations of the Kupferschiefer in northern Germany Koch J International Journal of Coal Geology, 33(4), 301, 1997 |
| No. | Article |
|---|---|
| 1 |
Organic petrographic investigations of the Kupferschiefer in northern Germany Koch J International Journal of Coal Geology, 33(4), 301, 1997 |