TY - BOOK AU - Schrijver,Alexander TI - Combinatorial optimization: polyhedra and efficiency T2 - Algorithms and combinatorics SN - 3540443894 AV - QA402.5 .S37 2003 PY - 2003/// CY - Berlin PB - Springer KW - Combinatorial optimization N1 - v. A. Paths, flows, matchings -- volume B. Matroids, trees, stable sets -- volume C. Disjoint paths, hypergraphs ER -