1. Chromatically unique graphs;Chao;Discrete Math.,1979
2. On the coefficients of the chromatic polynomial of a graph;Eisenberg,1970
3. On chromatic coefficients;Farrel;Discrete Math.,1980
4. Some chromatically unique graphs with seven points;Frucht;Ars Combin.,1983
5. Some new families of chromatically unique graphs;Giudici,1985