CHAUDHARY, M.S.; JOSHI, S.S. Application of Ruscheweyh Derivative to Univalent Functions with Negative Coefficients. MATEMATIKA, [S. l.], v. 23, p. 183–189, 2007. DOI: 10.11113/matematika.v23.n.532. Disponível em: https://matematika.utm.my/index.php/matematika/article/view/532. Acesso em: 7 may. 2024.