共 6 条
- [1] Chvatal V., 1979, Mathematics of Operations Research, V4, P233, DOI 10.1287/moor.4.3.233
- [2] Garey Michael R., 1979, COMPUTERS INTRACTABI
- [4] RATIO OF OPTIMAL INTEGRAL AND FRACTIONAL COVERS [J]. DISCRETE MATHEMATICS, 1975, 13 (04) : 383 - 390
- [5] SENJU S, 1968, MANAGE SCI, V15, pB196
- [6] SIMPLIFIED ALGORITHM FOR OBTAINING APPROXIMATE SOLUTIONS TO ZERO-ONE PROGRAMMING PROBLEMS [J]. MANAGEMENT SCIENCE SERIES B-APPLICATION, 1975, 21 (12): : 1417 - 1427