@article{Karp1979,
	title = {The optimal linear alternative to price and quantity controls in the multifirm case},
	author = {Gordon Karp and Gary W. Yohe},
	journal = {Journal of Comparative Economics},
	month = {Mar},
	number = {1},
	pages = {56--65},
	url = {http://www.sciencedirect.com/science/article/B6WHV-4CYH069-17R/1/9adabfd45fef8c0c67ffc9c61ba8a434},
	volume = {3},
	year = {1979},
	biburl = {http://www.bibsonomy.org/bibtex/2b23034a5c5f81d8d7a98765019dd43be/smicha},
	keywords = {imported }
}