XEROUDAKES, G. A Diophantine equation in virus structure. MATHEMATICA SCANDINAVICA, [S. l.], v. 37, p. 102–104, 1975. DOI: 10.7146/math.scand.a-11591. Disponível em: https://www.mscand.dk/article/view/11591. Acesso em: 1 may. 2024.