The Ordovician-Silurian boundary beds of the north-east USSR
Koren, Tatyana N Oradovskaya, M M Sobolevskaya, R R
Article
1988-04-28
Bulletin of the British Museum (Natural History) Geology
43
133--138
BioStor
English
London, BM(NH),
BioStor: https://biostor.org/reference/265832
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http://creativecommons.org/licenses/by-nc-sa/4.0/
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