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journalAt: Journal of the Faculty of Science of the Hokkaido Imperial University, Series, 4, Geology and mineralogy, 1, 3-4 By: Ôishi S.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 243, 4-6 By: Schweitzer H.-J., van Konijnenburg-van Cittert J. H. A., van der Burgh J.
journalAt: American Journal of Botany, 81, 4 By: Rothwell G. W., Stockey R. A.
journalAt: Sborník Národního Muzea v Praze, Řada, Řada B, Přírodni vědy (Přírodovědný 1938-1957), 64, 2-4 By: Kvaček Z.
journalAt: University of California Publications in Geological Sciences, 35, 1 By: Lakhanpal R. N.
journalAt: Publications of the Carnegie Institution of Washington, 476 By: Condit C.
journalAt: Bulletin of the British Museum (Natural History), Series, Geology, 2, 7 By: Chandler M. E. J.
journalAt: Oregon State Monographs, Series, Studies in Geology, 4 By: Sanborn E. I.
journalAt: Bulletin of the Faculty of Liberal Arts Ibaraki University, Series, Natural science, 8 By: Ôyama T.