Dedicated to the 80th anniversary of the doctor of biological sciences, academician of the Academy of Ecology, professor Mamutov Zheken Umbetkulovich. Journal of Geography and Environmental Management, [S. l.], v. 53, n. 2, p. 67–68, 2019. Disponível em: https://bulletin-geography.kaznu.kz/index.php/1-geo/article/view/797. Acesso em: 13 jul. 2026.