Nurlibaev А.; Bekzhigitova Л. Complex progressions, formulas for their sums and applications. Рroblems of engineering and professional education, [S. l.], v. 2, n. 2, p. 54, 2022. DOI: 10.32523/2220-685X-2010-2-2-54. Disponível em: https://bulprengpe.enu.kz/index.php/main/article/view/107. Acesso em: 30 apr. 2024.