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@article{DBLP:journals/siamcomp/MossR07,
author = {Anna Moss and
Yuval Rabani},
title = {Approximation Algorithms for Constrained Node Weighted Steiner
Tree Problems},
journal = {SIAM J. Comput.},
volume = {37},
number = {2},
year = {2007},
pages = {460-481},
ee = {http://dx.doi.org/10.1137/S0097539702420474},
bibsource = {DBLP, http://dblp.uni-trier.de}
}
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