NEMEJC, F. Stephanian floras in the coal districts of Czechoslovakia in the light of new geological investigations. Journal of Palaeosciences, [S. l.], v. 14, n. (1-3), p. 70–72, 1965. DOI: 10.54991/jop.1965.716. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/716. Acesso em: 11 may. 2024.