Integer programming: facets, subadditivity, and duality for group and semi-group problems/
Ellis L. Johnson.
- Philadelphia: SIAM, 1980.
- 68 p.
- CBMS-NSF Regional conference series in applied mathematics .
- CBMS-NSF Regional conference series in applied mathematics; 32. .
Lecture notes presented at the Regional Research Conference on Integer Programming, State University of New York at Buffalo, June 5-9, 1978.