LEHTO, Olli. A majorant principle in the theory of functions. Mathematica Scandinavica, Berkeley, CA, United States, v. 1, p. 5–17, 1953. DOI: 10.7146/math.scand.a-10360. Disponível em: https://journals.msp.org/mscand/article/view/2960. Acesso em: 25 jul. 2026.