Fulla, P., & Zivny, S. (2017). On planar valued CSPs. Elsevier.
Cita Chicago (17th ed.)Fulla, P., i S. Zivny. On Planar Valued CSPs. Elsevier, 2017.
Cita MLA (9th ed.)Fulla, P., i S. Zivny. On Planar Valued CSPs. Elsevier, 2017.
Atenció: Aquestes cites poden no estar 100% correctes.