@article{Blackburn1997,
	title = {Misspecified skedastic functions in grouped-data models},
	author = {McKinley L. Blackburn},
	day = {15},
	journal = {Economics Letters},
	month = {Aug},
	number = {1},
	pages = {1--8},
	url = {http://www.sciencedirect.com/science/article/B6V84-3SX1M0B-1/2/07e77e928e98a706e931a679a27626b7},
	volume = {55},
	year = {1997},
	biburl = {http://www.bibsonomy.org/bibtex/21157337204d9e5316123ca0b38d59464/smicha},
	description = {Economics Letters},
	keywords = {Generalized least squares }
}