A polylogarithmic approximation algorithm for the group Steiner tree problem
Proceedings of the ninth annual ACM-SIAM symposium on Discrete algorithms
On Multicriteria Online Problems
ESA '00 Proceedings of the 8th Annual European Symposium on Algorithms
Competitive algorithms for the bicriteria k-server problem
Discrete Applied Mathematics - Special issue: International symposium on combinatorial optimization CO'02
On the bicriteria k-server problem
ACM Transactions on Algorithms (TALG)
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