Havas, G., & Vaughan-Lee, M. (2009). On counterexamples to the Hughes conjecture. Elsevier.
Cita Chicago (17th ed.)Havas, G., i M. Vaughan-Lee. On Counterexamples to the Hughes Conjecture. Elsevier, 2009.
Cita MLA (9th ed.)Havas, G., i M. Vaughan-Lee. On Counterexamples to the Hughes Conjecture. Elsevier, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.