Feng Ming Dong Khee Meng Koh Kee L. Teo Charles H. C. Little Michael D. Hendy An attempt to classify bipartite graphs by chromatic polynomials. 73-88 2000 222 Discrete Mathematics 1-3 http://dx.doi.org/10.1016/S0012-365X(00)00007-8 db/journals/dm/dm222.html#DongKTLH00