1. Optimal linear ordering;Adolphson;SIAM J. Appl. Math.,1973
2. The Design of Computer Algorithms;Aho,1974
3. K. R. Baker, Single machine sequencing with weighting factors and precedence constraints, unpublished paper (1971)
4. On a selection problem;Balinski;Management Sci.,1970
5. Theory of Scheduling;Conway,1967