PORWAL, Saurabh; GHAI, Sanjay Kumar; KUMAR, Kaushal. Some new subclasses of bi-univalent functions. Studia Universitatis Babeș-Bolyai Mathematica, [S. l.], v. 60, n. 4, p. 543–552, 2015. Disponível em: https://studia.reviste.ubbcluj.ro/index.php/subbmathematica/article/view/5830. Acesso em: 5 feb. 2025.