BLANK, N. On a uniqueness property of second convolutions. MATHEMATICA SCANDINAVICA, [S. l.], v. 104, n. 2, p. 182–187, 2009. DOI: 10.7146/math.scand.a-15093. Disponível em: https://tidsskrift.dk/math/article/view/15093. Acesso em: 14 aug. 2026.