SLOWIKOWSKI, W. On Hörmander’s Theorem about Surjections of $\mathscr{D}’$. Mathematica Scandinavica, Berkeley, CA, United States, v. 30, p. 267–280, 1972. DOI: 10.7146/math.scand.a-11083. Disponível em: https://journals.msp.org/mscand/article/view/2244. Acesso em: 25 jul. 2026.