XEROUDAKES, George. A Diophantine equation in virus structure. Mathematica Scandinavica, Berkeley, CA, United States, v. 37, p. 102–104, 1975. DOI: 10.7146/math.scand.a-11591. Disponível em: https://journals.msp.org/mscand/article/view/2082. Acesso em: 25 jul. 2026.