@article{DMGT_1995_15_1_a2,
     author = {{\L}azuka, Ewa},
     title = {On chromaticity of graphs},
     journal = {Discussiones Mathematicae. Graph Theory},
     pages = {19--31},
     year = {1995},
     volume = {15},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGT_1995_15_1_a2/}
}