GOPALAKRISHNA, H. S.; BHOOSNURMATH, S. S. Uniqueness theorems for meromorphic functions. Mathematica Scandinavica, Berkeley, CA, United States, v. 39, p. 125–130, 1976. DOI: 10.7146/math.scand.a-11650. Disponível em: https://journals.msp.org/mscand/article/view/1996. Acesso em: 25 jul. 2026.