@article{10_37236_466,
     author = {Roman Soukal and P\v{r}emysl Holub},
     title = {A note on packing chromatic number of the square lattice},
     journal = {The electronic journal of combinatorics},
     year = {2010},
     volume = {17},
     doi = {10.37236/466},
     zbl = {1215.05050},
     url = {http://geodesic.mathdoc.fr/articles/10.37236/466/}
}