KUPRIANOVA, L. A tentative code of the ancient and derivative characters of pollen grains of Angiosperms. Journal of Palaeosciences, [S. l.], v. 15, n. (1-3), p. 35–37, 1966. DOI: 10.54991/jop.1966.744. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/744. Acesso em: 7 may. 2024.