LAPO, A. V. Phyterals of Jurassic coals of Tuva. Journal of Palaeosciences, [S. l.], v. 25, n. 1-3, p. 205–216, 1976. DOI: 10.54991/jop.1976.1011. Disponível em: https://jpsonline.co.in/index.php/jop/article/view/1011. Acesso em: 4 nov. 2024.