COHOON, D. K. Nonexistence of a Continuous Right Inverse for Linear Partial Differential Operators with Constant Coefficients. MATHEMATICA SCANDINAVICA, [S. l.], v. 29, p. 337–342, 1971. DOI: 10.7146/math.scand.a-11060. Disponível em: https://www.mscand.dk/article/view/11060. Acesso em: 3 jul. 2024.