BANAS, Jósef. Existence results for Volterra-Stieltjes quadratic integral equations on an unbounded interval. Mathematica Scandinavica, Berkeley, CA, United States, v. 98, n. 1, p. 143–160, 2006. DOI: 10.7146/math.scand.a-14988. Disponível em: https://journals.msp.org/mscand/article/view/709. Acesso em: 24 jul. 2026.