II International scientific conference «Regional economy: technologies, economy, ecology and infrastructure» (Kyzyl, 18-20 Oct. 2017.). The New Research of Tuva, [S. l.], n. 1, 2018. DOI: 10.25178/nit.2018.1.15. Disponível em: https://nit.tuva.asia/nit/article/view/763. Acesso em: 2 jan. 2026.