@article{10_26493_1855_3974_176_704, author = {Xuding Zhu}, title = { {Graphs} with chromatic numbers strictly less than their colouring numbers }, journal = {Ars Mathematica Contemporanea}, pages = {25--27}, publisher = {mathdoc}, volume = {4}, number = {1}, year = {2011}, doi = {10.26493/1855-3974.176.704}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.26493/1855-3974.176.704/} }