@article{10_37236_6736,
     author = {Zden\v{e}k Dvo\v{r}\'ak and Jean-S\'ebastien Sereni},
     title = {Do triangle-free planar graphs have exponentially many 3-colorings?},
     journal = {The electronic journal of combinatorics},
     year = {2017},
     volume = {24},
     number = {3},
     doi = {10.37236/6736},
     zbl = {1369.05074},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/6736/}
}