Cita APA (7a ed.)

Fulla, P., & Zivny, S. (2017). On planar valued CSPs. Elsevier.

Cita Chicago Style (17a ed.)

Fulla, P., y S. Zivny. On Planar Valued CSPs. Elsevier, 2017.

Cita MLA (9a ed.)

Fulla, P., y S. Zivny. On Planar Valued CSPs. Elsevier, 2017.