APA (7th ed.) Citation

Dvořák, Z., Škrekovski, R., & Valla, T. (2006). Planar graphs of odd-girth at least 9 are homomorphic to Petersen graph. Univ. of Ljubljana, Inst. of Mathematics, Physics and Mechanics, Dep. of Mathematics.

Chicago Style (17th ed.) Citation

Dvořák, Zdeněk, Riste Škrekovski, and Tomáš Valla. Planar Graphs of Odd-girth at Least 9 Are Homomorphic to Petersen Graph. Ljubljana: Univ. of Ljubljana, Inst. of Mathematics, Physics and Mechanics, Dep. of Mathematics, 2006.

MLA (9th ed.) Citation

Dvořák, Zdeněk, et al. Planar Graphs of Odd-girth at Least 9 Are Homomorphic to Petersen Graph. Univ. of Ljubljana, Inst. of Mathematics, Physics and Mechanics, Dep. of Mathematics, 2006.