1. Responses of leaf anatomy to light environment in the tree fern Cyathea caracasana (Cyatheaceae) and its application to some ancient seed ferns;Arens;Palaios,1997
2. Evolution of the leaf-forms through the ages explained by the successive retardation and neoteny;Asama;Sci. Rep. Tohoku Univ., Sendai, Japan, 2nd Ser. (Geology),1960
3. Evolution of Shansi flora and origin of simple leaf;Asama;Sci. Rep. Tohoku Univ., Sendai, Japan, 2nd Ser. (Geology), Spec. Vol.,1962
4. Rozwój unerwienia listeczków u karbońskich paproci nasiennych alethopterides (Alethopteris i Lonchopteris) oraz znaczenie analizy ich unerwienia dla diagnozy gatunku;Bocheński,1960
5. Notes paléophytiques sur le Westphalien du Nord de la France;Carpentier;Ann. Soc. Géol. Nord,1920