@article{DMTCS_2005_special_250_a26,
     author = {Bella, Peter and Kr\'al, Daniel and Mohar, Bojan and Quittnerov\'a, Katarina},
     title = {Labeling planar graphs with a condition at distance two},
     journal = {Discrete mathematics & theoretical computer science},
     year = {2005},
     volume = {DMTCS Proceedings vol. AE, European Conference on Combinatorics, Graph Theory and Applications (EuroComb '05)},
     doi = {10.46298/dmtcs.3417},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.46298/dmtcs.3417/}
}