BHARGAVA, S.; RAJANNA, K. R.; VASUKI, K. R. On Some Ramanujan Identities for the Ratios of Eta-Functions. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 66, n. 8, p. 1011–1028, 2014. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2196. Acesso em: 5 dec. 2025.