WRIGLEY, N. G.; BRUN, V.; LJUNGGREN, W. Diophantine Analysis Applied to Virus Structure. Mathematica Scandinavica, Berkeley, CA, United States, v. 34, p. 51–57, 1974. DOI: 10.7146/math.scand.a-11504. Disponível em: https://journals.msp.org/mscand/article/view/2144. Acesso em: 25 jul. 2026.