A.P. FARAJZADEH. Turan´ s inequality type for polygamma functions and some new inequalities. Bulletin of L.N. Gumilyov Eurasian National University. Mathematics, computer science, mechanics series, [S. l.], v. 126, n. 1, p. 68–71, 2019. Disponível em: https://bulmathmc.enu.kz/index.php/main/article/view/43. Acesso em: 21 nov. 2024.