1. Graphs and Hypergraphs;Berge,1973
2. Towards a theory of domination in graphs;Cockayne;Networks Fall,1977
3. Graph Theory;Harary,1969
4. Traversability and connectivity of the middle graph of a graph;Hamada;Discrete Math.,1976
5. Independent domination in Trees;Hedetniemi;Proc. Eighth S.E. Conf. on Combinatorics, Graph Theory, and Computing,1977