At: Oryctogr. Bruxelles, Bruxelles, Impr. de Le Maire By: de Burtin F. X.
journalAt: Boletim / Departamento Nacional da Produção Mineral, Divisão de Geologia e Mineralogia, 140 By: Sommer F. W.
journalAt: BMC Evolutionary Biology, 15, 126 By: Bomfleur B., Grimm G. W., McLoughlin S.
journalAt: American Journal of Botany, 69, 1 By: Miller C. N., Jr.
journalAt: Phytomorphology, 29, 1 By: Sharma B. D., Bohra D. R., Singh R.
journalAt: Palaeontographica, Abtheilung, B, Paläophytologie, 1-6 By: Tidwell W. D., Jones R.
journalAt: Proceedings and transactions of the Royal Society of Canada, Series 2, 8, Section 4 By: Penhallow D. P.
journalAt: Földtani Közlöny, 89, 3 By: Andreánszky G., Mészáros M [= N].
journalAt: Földtani Közlöny, 86, 1 By: Greguss P.
bookAt: Ösnövénytan, Budapest, Akadémiai Kiadó By: Andreánszky G.