NEGANOVA, Galina D.; GANTSOVSKAYA, Nina S. Feliks Yakovlevich Kon: chronology of the expedition beyond the Sayan mountains. The New Research of Tuva, [S. l.], n. 4, p. 216–226, 2019. DOI: 10.25178/nit.2019.4.18. Disponível em: https://nit.tuva.asia/nit/article/view/894. Acesso em: 3 mar. 2026.