共 4 条
[1]
INTEGER ROUNDING FOR POLYMATROID AND BRANCHING OPTIMIZATION PROBLEMS
[J].
SIAM JOURNAL ON ALGEBRAIC AND DISCRETE METHODS,
1981, 2 (04)
:416-425
[2]
BERGE C, 1976, CORR764 U WAT DEP CO
[3]
Gale D., 1960, THEORY LINEAR EC MOD
[4]
MARCOTTE O, 1982, 568 CORN U SCH OP RE