Optimal Approximation Algorithms for Maximum Distance-Bounded Subgraph Problems. - Yuichi Asahiro; Yuya Doi; Eiji Miyano; Hirotaka Shimizu (COCOA, 2015)

Optimal Approximation Algorithms for Maximum Distance-Bounded Subgraph Problems. - Yuichi Asahiro; Yuya Doi; Eiji Miyano; Kazuaki Samizo; Hirotaka Shimizu (Algorithmica, 2018)