@article{Haas1990,
	title = {The World Trade Model: Revised estimates},
	author = {Richard D. Haas and Anthony G. Turner},
	journal = {Journal of Policy Modeling},
	month = {00},
	number = {1},
	pages = {93--128},
	url = {http://www.sciencedirect.com/science/article/B6V82-45GNMDH-3C/1/750631e6e6a0accd988cc2893dca3c02},
	volume = {12},
	year = {1990},
	biburl = {http://www.bibsonomy.org/bibtex/2a1aa90767fc5731432f6a17aec605d9c/smicha},
	keywords = {imported }
}