1. Finding an independent set in a planar graph;Albertson, Michael O.,1974
2. A lower bound for the independence number of a planar graph;Albertson, Michael O.;J. Combinatorial Theory Ser. B,1976
3. M. O. Albertson and J. P. Hutchinson, On the independence ratio of a graph, J. Graph Theory (submitted).
4. The maximum size of an independent set in a nonplanar graph;Albertson, Michael O.;Bull. Amer. Math. Soc.,1975
5. The maximum size of an independent set in a toroidal graph;Albertson, Michael O.,1975