@article{Blackorby1990,
	title = {Elasticity of substitution in a regulated firm},
	author = {Charles Blackorby and R. Robert Russell},
	journal = {Economics Letters},
	month = {Feb},
	number = {2},
	pages = {111--114},
	url = {http://www.sciencedirect.com/science/article/B6V84-458XT4S-CN/2/6e1ec26e0cfbf5b76c7d623a5f5c49b9},
	volume = {32},
	year = {1990},
	biburl = {http://www.bibsonomy.org/bibtex/25bf9bfca9a58a88466b3efda9d7fcda3/smicha},
	description = {Economics Letters},
	keywords = {imported }
}