1.
Dvořák Z, Sereni J-S. Do Triangle-Free Planar Graphs have Exponentially Many $3$-Colorings?. Electron. J. Combin. [Internet]. 2017Sep.8 [cited 2026Apr.5];24(3):P3.47. Available from: https://www.combinatorics.org/ojs/index.php/eljc/article/view/v24i3p47