1. Network Flows: Theory, Algorithms and Applications;Ahuja,1993
2. R. Carr, G. Lancia, S. Istrail, On the integer programming approach to independent set problems with applications to protein structure alignment, Sandia Natl. Labs Technical Report, SAND2000-2171, 2000.
3. Combinatorial Optimization;Cook,1998
4. M. Fischetti, G. Lancia, P. Serafini, A Branch-and-Price algorithm for minimum routing cost trees, IX SIAM Conference on Discrete Mathematics, Toronto, 1998 (also, submitted for publication as “Exact Algorithms for Minimum Routing Cost Trees”, Networks, 2000).
5. The ellipsoid method and its consequences in combinatorial optimization;Grötschel;Combinatorica,1981