@incollection{Archer/01,
AUTHOR = {Archer, Aaron},
TITLE = {Two $O(\log ^* k)$-approximation algorithms for the asymmetric $k$-center problem},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {1-14},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/vr4tkdtxccnw1f4u},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Azar-Regev/01,
AUTHOR = {Azar, Yossi and Regev, Oded},
TITLE = {Strongly polynomial algorithms for the unsplittable flow problem},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {15-29},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/eq2xun7jtdm8udue},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Cheriyan-Vempala/01,
AUTHOR = {Cheriyan, Joseph and Vempala, Santosh},
TITLE = {Edge covers of setpairs and the iterative rounding method},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {30-44},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/q5gpdrdkctmh2nf3},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Chou-Queyranne-Simchi-Levi/01,
AUTHOR = {Chou, Cheng-Feng Mabel and Queyranne, Maurice and Simchi-Levi, David},
TITLE = {The asymptotic performance ratio of an on-line algorithm for uniform parallel machine scheduling with release dates},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {45-59},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/jnk0gnkj4amxgvxj},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Chudak-Roughgarden-Williamson/01,
AUTHOR = {Chudak, Fabi{\'a}n A. and Roughgarden, Tim and Williamson, David P.},
TITLE = {Approximate $k$-MSTs and $k$-Steiner trees via the primal-dual method and Lagrangean relaxation},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {60-70},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/7m62q6mf60bvl0pw},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Cornuejols-Li/01,
AUTHOR = {Cornu{\'e}jols, G{\'e}rard and Li, Yanjun},
TITLE = {On the rank of mixed 0,1 polyhedra},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {71-77},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/wq4uknw4b9bpa6yc},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Eisenbrand-Rote/01,
AUTHOR = {Eisenbrand, Friedrich and Rote, G{\"u}nter},
TITLE = {Fast 2-variable integer programming},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {78-89},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/mrnag6apc4wm7jh3},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Elkin-Peleg/01,
AUTHOR = {Elkin, Michael and Peleg, David},
TITLE = {Approximating $k$-spanner problems for $k>2$},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {90-104},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/a32qbwk1bp86fh3l},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Fleiner/01b,
AUTHOR = {Fleiner, Tam{\'a}s},
TITLE = {A matroid generalization of the stable matching polytope},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {105-114},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/kkhw2vjmeea0vd29},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Fleischer/01,
AUTHOR = {Fleischer, Lisa},
TITLE = {A 2-approximation for minimum cost {0,1,2} vertex connectivity},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {115-129},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/e81axc2th3t7rnaf},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Frank-Kiraly/01,
AUTHOR = {Frank, Andr{\'a}s and Kir{\'a}ly, Tam{\'a}s},
TITLE = {Combined connectivity augmentation and orientation problems},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {130-144},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/1a48v14gvudf919e},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Frank-Szego/01,
AUTHOR = {Frank, Andr{\'a}s and Szeg{\H{o}}, L{\'a}szl{\'o}},
TITLE = {An extension of a theorem of Henneberg and Laman},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {145-159},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/mvfyrmw50dctq9yh},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Fujishige-Iwata/01,
AUTHOR = {Fujishige, Satoru and Iwata, Satoru},
TITLE = {Bisubmodular function minimization},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {160-169},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/wrjthh7kj7rdkjy0},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Garg-Khandekar-Konjevod-Ravi-Salman-Sinha/01,
AUTHOR = {Garg, Naveen and Khandekar, Rohit and Konjevod, Goran and Ravi, R. and Salman, F.S. and Sinha, Amitabh},
TITLE = {On the integrality gap of a natural formulation of the single-sink buy-at-bulk network design problem},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {170-184},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/vdnguf0qd8y4cpwl},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Guenin/01a,
AUTHOR = {Guenin, Bertrand},
TITLE = {Circuit Mengerian directed graphs},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {185-195},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/fcjmf0lugmkwc29k},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Guenin/01b,
AUTHOR = {Guenin, Bertrand},
TITLE = {Integral polyhedra related to even cycle and even cut matroids},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {196-209},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/2teuuu3d09k3jfyc},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Halperin-Zwick/01b,
AUTHOR = {Halperin, Eran and Zwick, Uri},
TITLE = {A unified framework for obtaining improved approximation algorithms for maximum graph bisection problems},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {210-225},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/ml7uyh2k9vkgklxn},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Hassin-Levin/01,
AUTHOR = {Hassin, Refael and Levin, Asaf},
TITLE = {Synthesis of 2-commodity flow networks},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {226-235},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/lfc83p1auv0avfgk},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Hordijk-van_der_Laan/01,
AUTHOR = {Hordijk, A. and van der Laan, D.A.},
TITLE = {Bounds for deterministic periodic routing sequences},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {236-250},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/0ablt54rakjwcdgv},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Iyengar-Cezik/01,
AUTHOR = {Iyengar, G. and {\c{C}}ezik, M.T.},
TITLE = {Cutting planes for mixed 0-1 semidefinite programs},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {251-263},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/54jj1ljuy92j819y},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Jackson-Jordan/01,
AUTHOR = {Jackson, Bill and Jord{\'a}n, Tibor},
TITLE = {Independence free graphs and vertex connectivity augmentation},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {264-279},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/6h9hx2gn7qhjj372},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Kodialam/01,
AUTHOR = {Kodialam, Murali S.},
TITLE = {The throughput of sequential testing},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {280-292},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/l5dxc40qc11t574m},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Lasserre/01,
AUTHOR = {Lasserre, Jean B.},
TITLE = {An explicit exact SDP relaxation for nonlinear 0-1 programs},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {293-303},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/fpjhxlp0qwvwh1c8},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Margot/01,
AUTHOR = {Margot, Fran{\c{c}}ois},
TITLE = {Pruning by isomorphism in branch-and-cut},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {304-317},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/8mab67vwure0lbcv},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Miller-Nemhauser-Savelsbergh/01,
AUTHOR = {Miller, Andrew J. and Nemhauser, George L. and Savelsbergh, Martin W.P.},
TITLE = {Facets, algorithms, and polyhedral characterizations for a multi-item production planning model with setup times},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {318-332},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/b42ru0plxbmu1r87},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Newman-Vempala/01,
AUTHOR = {Newman, Alantha and Vempala, Santosh},
TITLE = {Fences are futile: On relaxations for the linear ordering problem},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {333-347},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/fcc2lder9rw99dpf},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Perregaard-Balas/01,
AUTHOR = {Perregaard, Michael and Balas, Egon},
TITLE = {Generating cuts from multiple-term disjunctions},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {348-360},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/2cw4va1n8c2enlkf},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Queyranne-Sviridenko/01,
AUTHOR = {Queyranne, Maurice and Sviridenko, Maxim},
TITLE = {A $(2+\varepsilon)$-approximation algorithm for generalized preemptive open shop problem with minsum objective},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {361-369},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/hc6bh2gh2myq02k5},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Schuurman-Vredeveld/01,
AUTHOR = {Schuurman, Petra and Vredeveld, Tjark},
TITLE = {Performance guarantees of local search for multiprocessor scheduling},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {370-382},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/yrk56lxxre6h7bum},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Sebo-Tannier/01,
AUTHOR = {Seb{\H{o}}, Andr{\'a}s and Tannier, Eric},
TITLE = {Connected joins in graphs},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {383-395},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/2a6vl75tk2mcrr6f},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Sitters/01,
AUTHOR = {Sitters, Ren{\'e}},
TITLE = {Two $NP$-hardness results for preemptive minsum scheduling of unrelated parallel machines},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {396-405},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/l6k0v7aag1ngu74t},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}
@incollection{Stein-Wagner/01,
AUTHOR = {Stein, Clifford and Wagner, David P.},
TITLE = {Approximation algorithms for the minimum bends Traveling Salesman Problem},
BOOKTITLE = {Proceedings of the 8th International Conference on Integer Programming and Combinatorial Optimization, IPCO'2001 (Utrecht, The Netherlands, June 13-15, 2001)},
SERIES = {LNCS},
VOLUME = {2081},
PAGES = {406-421},
YEAR = {2001},
EDITOR = {Aardal, Karen and Gerards, Bert},
URL = {http://www.springerlink.com/content/l6wej0t4gew4bjrb},
PUBLISHER = {Springer-Verlag},
ADDRESS = {Berlin-Heidelberg-New York-Barcelona-Hong Kong-London-Milan-Paris-Singapore-Tokyo},
}