@conference {Rubinstein_ACM15,
	title = {Approximability of Adaptive Seeding under Knapsack Constraints},
	booktitle = {The ACM Conference on Economics and Computation (EC) 2015},
	year = {2015},
	pages = {797-814},
	url = {http://econcs.seas.harvard.edu/files/econcs/files/rubinstein_acm15.pdf},
	author = {Aviad Rubinstein and Lior Seeman and Yaron Singer}
}
