%0 Conference Paper %B 2009 50th Annual IEEE Symposium on Foundations of Computer Science %D 2009 %T Improved approximation algorithms for prize-collecting Steiner tree and TSP %A Archer,A. %A Bateni,M. H %A Hajiaghayi, Mohammad T. %A Karloff,H. %B 2009 50th Annual IEEE Symposium on Foundations of Computer Science %P 427 - 436 %8 2009/// %G eng