| The author: | Ribkina Natalyà Leontevna |
| Dissertation theme: | Brahiopody group Spiriferida top ordovika and a silurian of Tuva, their stratum and correlation value |
| The dissertation description: | Brahiopody group Spiriferida top ordovika and a silurian of Tuva, their stratum and correlation value: silt RSL of OD 61:85-4/363 |
| Year: |
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