@article{oai:tsukuba.repo.nii.ac.jp:00040619,
 author = {Kawarabayashi, Ken-Ichi and Kobayashi, Yusuke and 小林, 佑輔},
 issue = {1},
 journal = {ACM transactions on algorithms},
 month = {Dec},
 pages = {1--17},
 title = {An Improved Approximation Algorithm for the Edge-Disjoint Paths Problem with Congestion Two},
 volume = {13},
 year = {2016}
}