@article{Stock2008,
	title = {Heteroskedasticity-Robust Standard Errors for Fixed Effects Panel
	Data Regression},
	author = {James H. Stock and Mark W. Watson},
	day = {01},
	journal = {Econometrica},
	month = {Jan},
	note = {doi: 10.1111/j.0012-9682.2008.00821.x},
	number = {1},
	pages = {155--174},
	url = {http://www.blackwell-synergy.com/doi/abs/10.1111/j.0012-9682.2008.00821.x},
	volume = {76},
	year = {2008},
	biburl = {http://www.bibsonomy.org/bibtex/253edf86991e9b541dbd8d782089597f7/smicha},
	keywords = {imported }
}