ZEUNER, F. E. Palaeobotanical Aspects of Geochronology. Journal of Palaeosciences, [S. l.], v. 1, p. 448–455, 1952. DOI: 10.54991/jop.1952.401. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/401. Acesso em: 27 aug. 2024.