1. On chromatic equivalence of graphs;Chao;Springer Lecture Notes in Math,1978
2. Chromatic uniqueness of certain bipartite graphs;Giudici,1990
3. Graph Theory;Harary,1969
4. The search for chromatically unique graphs;Koh;Graphs and Combin.,1990
5. K.M. Koh; K.L. Teo, The search for chromatically unique graphs II, preprint.