AKBAROV SAYITALI ASKAROVICH. A Proof of the Gauss - Bonnet Theorem. CENTRAL ASIAN JOURNAL OF MATHEMATICAL THEORY AND COMPUTER SCIENCES, [S. l.], v. 2, n. 3, p. 23–26, 2021. Disponível em: https://cajmtcs.casjournal.org/index.php/CAJMTCS/article/view/66. Acesso em: 6 apr. 2026.