REIERSÖL, O. Genetic Algebras Studied Recursively and by Means of Differential Operators. MATHEMATICA SCANDINAVICA, [S. l.], v. 10, p. 25–44, 1962. DOI: 10.7146/math.scand.a-10511. Disponível em: https://www.mscand.dk/article/view/10511. Acesso em: 4 may. 2024.