Uriel Feige, MohammadTaghi Hajiaghayi, James R. Lee. Improved Approximation Algorithms for Minimum Weight Vertex Separators. SIAM Journal on Computing, 38(2):629-657, 2008. [doi]
@article{FeigeHL08,
title = {Improved Approximation Algorithms for Minimum Weight Vertex Separators},
author = {Uriel Feige and MohammadTaghi Hajiaghayi and James R. Lee},
year = {2008},
doi = {10.1137/05064299X},
url = {http://dx.doi.org/10.1137/05064299X},
researchr = {https://researchr.org/publication/FeigeHL08},
cites = {0},
citedby = {0},
journal = {SIAM Journal on Computing},
volume = {38},
number = {2},
pages = {629-657},
}