TY  - GEN
AU  - Nemhauser,George
AU  - Wolsey,Laurence
TI  - Integer and combinatorial optimization: awiley interscience series in discrete mathematics and optimization
SN  - 9780471359432
U1  - 519.77 
PY  - 1999///
CY  - New York
PB  - John Wiley and Sons Inc
ER  -