KISELMAN, C. O. Functionals on the Space of Solutions to a Differential Equation with Constant Coefficients. The Fourier and Borel Transformations. MATHEMATICA SCANDINAVICA, [S. l.], v. 23, p. 27–53, 1968. DOI: 10.7146/math.scand.a-10895. Disponível em: https://www.mscand.dk/article/view/10895. Acesso em: 7 may. 2024.