1. The independence ratio and maximum degree of a graph;Albertson,1976
2. On colouring the nodes of a network;Brooks,1941
3. The independence ratio for cubic graphs;Fajtlowicz,1977
4. On the size of independent sets in graphs;Fajtlowicz,1978
5. Some graph theoretic results associated with Ramsey's theorem;Graver;J. Combin. Theory,1968