At: Annales de la Société Géologique du Nord, 77, 2 By: Doubinger J.
journalAt: Bulletin de la Société Géologique de France, Series 6 [1955], 5, 7-9 By: Veillet-Bartoszewska M.
journalAt: Bulletin de la Société Géologique de France, Series 7 [1971], 13, 1-2 By: Chanton-Güvenç N.
journalAt: Nature, 54 By: Scott D. H.
journalAt: Bulletin of the Natural History Society of New Brunswick, 1890, 9 By: Matthew G. F.
journalAt: Contribuţii botanice Universitaţea “Babeş-Bolyai” din Cluj-Napoca, 1978 By: Petrescu I., Ianoliu C., Dragoș I.
journalAt: Studia Universitatis Babeş-Bolyai, Geologia-Mineralogia, 1974, 2 By: Petrescu I., Liszkay I.
journalAt: Glasnik Zemaljskog Muzeja u Bosni i Hercegovini, 1910, 22, 4 By: Engelhardt H.
journalAt: Glasnik Zemaljskog Muzeja u Bosni i Hercegovini, 15, 1 By: Engelhardt H.
journalAt: Glasnik Zemaljskog Muzeja u Bosni i Hercegovini, 14, 3-4 By: Engelhardt H.