CHERLY, J. An Addition Theorem in a Finite Abelian Group. MATHEMATICA SCANDINAVICA, [S. l.], v. 74, p. 5–8, 1994. DOI: 10.7146/math.scand.a-12474. Disponível em: https://www.mscand.dk/article/view/12474. Acesso em: 2 may. 2024.