arXiv 2015-08-29 EN Approximating (Unweighted) Tree Augmentation via Lift-and-Project, Part I: Stemless TAP Cheriyan, Joe · Gao, Zhihan
arXiv 2015-07-06 EN Approximating (Unweighted) Tree Augmentation via Lift-and-Project, Part II Cheriyan, Joe · Gao, Zhihan
