@article{DMGT_2014_34_4_a12,
     author = {Fabrici, Igor and Jendrol{\textquoteright}, Stanislav and Sot\'ak, Roman},
     title = {A note on vertex colorings of plane graphs},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {849--855},
     publisher = {mathdoc},
     volume = {34},
     number = {4},
     year = {2014},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2014_34_4_a12/}
}