TY  - BOOK
AU  - Burkard R E Ed.
AU  -  Guninghame-Green R A Ed.
TI  - Algebric and combinatorial methods in operations research
U1  - B2893, M4-;1 
PY  - 1984///
CY  - Amsterdam
PB  - North-Holland         
KW  - operations research
N1  - Includes bibliography
ER  -