POULSEN, Ebbe Thue. Boundary Value Properties Connected With Some Improper Dirichlet Integrals. Mathematica Scandinavica, Berkeley, CA, United States, v. 8, p. 5–14, 1960. DOI: 10.7146/math.scand.a-10587. Disponível em: https://journals.msp.org/mscand/article/view/2758. Acesso em: 25 jul. 2026.