TY  - GEN
AU  - Williamson, David P. 
AU  - Shmoys, David B. 
TI  - The design of approximation algorithms
SN  - 9780521195270
U1  - 005.1 WIL/D 
PY  - 2011///
CY  - New York
PB  - Cambridge University Press
KW  - Approximation theory
ER  -