@conference {14558,
	title = {The prize-collecting generalized Steiner tree problem via a new approach of primal-dual schema},
	booktitle = {Proceedings of the seventeenth annual ACM-SIAM symposium on Discrete algorithm},
	year = {2006},
	month = {2006///},
	pages = {631 - 640},
	author = {Hajiaghayi, Mohammad T. and Jain,K.}
}
