TY - BOOK AU - Fujishige, Satoru TI - Submodular functions and optimization T2 - Annals of discrete mathematics SN - 0-444-88556-0 U1 - 511.6/FUJ PY - 1991/// CY - Amsterdam PB - North-Holland KW - Combinatorial optimization KW - Submodular functions KW - Mathematics ER -