@article{DMGT_2017_37_2_a3,
     author = {Czap, J. and Jendrol{\textquoteright}, S. and Valiska, J.},
     title = {WORM {Colorings} of {Planar} {Graphs}},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {353--368},
     publisher = {mathdoc},
     volume = {37},
     number = {2},
     year = {2017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_2017_37_2_a3/}
}