A Constant-Factor Approximation Algorithm for the Link Building Problem. - Martin Olsen; Anastasios Viglas; Ilia Zvedeniouk (COCOA (2), 2010)

Angle Tree: Nearest Neighbor Search in High Dimensions with Low Intrinsic Dimensionality - Ilia Zvedeniouk; Sanjay Chawla (CoRR, 2010)

An approximation algorithm for the link building problem - Martin Olsen; Anastasios Viglas; Ilia Zvedeniouk (CoRR, 2012)