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263by Morse, N. H., Sveistrup, P. P.Get access
Published in The Canadian Journal of Economics and Political Science (1951)
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268by P. Tuisku, P. Mikkola, H. HuhmaGet access
Published in Bulletin of the Geological Society of Finland (2006)
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279by Mitrofanov, F. P., Petrov, V. P.Get access
Published in Geologiska Föreningen i Stockholm Förhandlingar (1991)
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