At: Mededelingen Rijks Geologische Dienst, Series, Nieuwe, 53 By: van Amerom H. W. J.
journalAt: Carnets de Géologie / Notebooks on Geology, 21, 1 By: Granier B., Michaud F.
journalAt: Geobios, 19, 6 By: Granier B., Michaud F., Fourcade E.
journalAt: Comptes rendus hebdomadaires des séances de l’Académie des Sciences, Paris, 244, 24 By: Deflandre G., Durrieu L.
journalAt: American Journal of Botany, 101, 3 By: Benca J. P., Carlisle M. H., Bergen S., Strömberg C. A. E.
journalAt: American Journal of Botany, 82, 7 By: Friis E. M., Pedersen K. R., Crane P. R.
journalAt: Geologica Romana, 2 By: Sirna G.
journalAt: Review of Palaeobotany and Palynology, 138, 3-4 By: Césari S. N.
journalAt: International Journal of Plant Sciences, 167, 2 By: Wang H.-S., Dilcher D. L.
journalAt: Journal of biology, Osaka City University, 12 By: Miki S.