Anna Moss, Yuval Rabani. Approximation Algorithms for Constrained Node Weighted Steiner Tree Problems. SIAM Journal on Computing, 37(2):460-481, 2007. [doi]
@article{MossR07,
title = {Approximation Algorithms for Constrained Node Weighted Steiner Tree Problems},
author = {Anna Moss and Yuval Rabani},
year = {2007},
doi = {10.1137/S0097539702420474},
url = {http://dx.doi.org/10.1137/S0097539702420474},
researchr = {https://researchr.org/publication/MossR07},
cites = {0},
citedby = {0},
journal = {SIAM Journal on Computing},
volume = {37},
number = {2},
pages = {460-481},
}