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journalAt: Trudy Instituta geologii i geofiziki Sibirskogo otdeleniya Akademii Nauk SSSR, 49 By: Voronova L. G.
bookAt: Morfol. Klassif. Opis. Forma-Rod. Miosp. Pozdn. Paleoz., St.-Petersburg, Izdatel'stvo VSEGEI By: Oshurkova M. V.
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bookAt: Sborn. Pam. Krisht., Moscow & Leningrad, Izdateľstvo Akademii Nauk SSSR By: Radczenko G. P.
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bookAt: Iskop. Tsvetk. Rast. SSSR, Leningrad, Izdatel'stvo Nauka, Leningradskoe otdelenie, 2 By: Dorofeev P. I.