Callipterid peltasperms of the Dunkard Group, Central Appalachian Basin
| Autor: | DiMichele, William A., Kerp, Hans, Sirmons, Roberta, Fedorko, Nick, Skema, Viktoras, Blake, Bascombe M., Jr., Cecil, C. Blaine |
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| Zdroj: | In International Journal of Coal Geology 1 November 2013 119:56-78 |
| Databáze: | ScienceDirect |
| Externí odkaz: |
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