1. Independent domination in trees;Beyer;Proc. 8th Southeastern Conference on Combinatorics, Graph Theory and Computing,1977
2. Worst-case analysis of a new heuristic for the travelling salesman problem;Christofides,1976
3. Independent domination in chordal graphs;Farber;Oper. Res. Lett.,1982
4. The complexity of near-optimal graph coloring;Garey;J. ACM,1976
5. Computers and Intractability;Garey,1979