Approximation algorithms for geometric tour and network design problems (extended abstract)
Proceedings of the eleventh annual symposium on Computational geometry
A polylogarithmic approximation algorithm for the group Steiner tree problem
Proceedings of the ninth annual ACM-SIAM symposium on Discrete algorithms
A distributed algorithm for constructing a minimum diameter spanning tree
Journal of Parallel and Distributed Computing
On the minimum diameter spanning tree problem
Information Processing Letters
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