Ewa Lazuka. On chromaticity of graphs. Discussiones Mathematicae Graph Theory, 15(1):19-31, 1995. [doi]
@article{Lazuka95, title = {On chromaticity of graphs}, author = {Ewa Lazuka}, year = {1995}, doi = {10.7151/dmgt.1003}, url = {http://dx.doi.org/10.7151/dmgt.1003}, researchr = {https://researchr.org/publication/Lazuka95}, cites = {0}, citedby = {0}, journal = {Discussiones Mathematicae Graph Theory}, volume = {15}, number = {1}, pages = {19-31}, }