REIERSÖL, Olav. Genetic Algebras Studied Recursively and by Means of Differential Operators. Mathematica Scandinavica, Berkeley, CA, United States, v. 10, p. 25–44, 1962. DOI: 10.7146/math.scand.a-10511. Disponível em: https://journals.msp.org/mscand/article/view/2677. Acesso em: 25 jul. 2026.