FRENNEMO, Lennart. Tauberian Problems for the $n$-Dimensional Laplace Transform. Mathematica Scandinavica, Berkeley, CA, United States, v. 19, p. 41–53, 1966. DOI: 10.7146/math.scand.a-10794. Disponível em: https://journals.msp.org/mscand/article/view/2546. Acesso em: 25 jul. 2026.