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56 HVL 301
BASSETT, Michael G.
Discussion on a revision of Ordovician Series and Stage divisions fromm the historical type area / M.G.Bassett et al. -- Cambridge, 199-. -- S.767-772, : obr. -- In: Geological Magazine, 1996, vol.133, no.6.. -- Bassett a Owens komentují, ostatní odpovídají. -- bibl.
discussion - Ordovician Series - Stage divisions - historical type area
56
57795
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