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Titel : | Three new Upper Cambrian stages for North America / Rolf Ludvigsen - Stephen R. Westrop
| Hauptautor : | Ludvigsen, Rolf
| Subsequent responsibility : | Westrop, Stephen R.
| Umfang : | S.139-143 : 4 Figs.
| UDC : | 56
| In : | Geology.
| Note : | separát
| | bibl.
| Citováno jako : | LUDVIGSEN, Rolf - WESTROP, Stephen R. The new Uper Cambrian stages... Geology. 1985, Vol.13, S. 139-143, 4 Figs.
| Kl.slova : | Upper Cambrian - Severná America |
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