Nurmakhanov Н. Б.; Karazhanov A.A. К. А. Geometric design of the surface of an underground working using (2-2)-digit transformation Г2. Рroblems of engineering and professional education, [S. l.], v. 2, n. 2, p. 8, 2022. DOI: 10.32523/2220-685X-2010-2-2-8. Disponível em: https://bulprengpe.enu.kz/index.php/main/article/view/83. Acesso em: 21 nov. 2024.