@article{v002a007,
 author = {Chandra Chekuri and Sanjeev Khanna and F. Bruce Shepherd},
 title = {An O(√n) Approximation and Integrality Gap for Disjoint Paths and Unsplittable Flow},
 year = {2006},
 pages = {137-146},
 doi = {10.4086/toc.2006.v002a007},
 publisher = {Theory of Computing},
 journal = {Theory of Computing},
 volume = {2},
 number = {1},
 URL = {http://www.theoryofcomputing.org/articles/v002a007},
}