@article{Arag�2005,
	title = {Heteroskedasticity in the returns of the main world stock exchange indices: volume versus GARCH effects},
	author = {Vicent Arag{\'o} and Luisa Nieto},
	journal = {Journal of International Financial Markets, Institutions and Money},
	month = {Jul},
	number = {3},
	pages = {271--284},
	url = {http://www.sciencedirect.com/science/article/B6VGT-4DW3FC0-1/1/b97536162d22c25a5e00a526dcda983f},
	volume = {15},
	year = {2005},
	biburl = {http://www.bibsonomy.org/bibtex/214d1f823175678ebdc6f4f5bc9f21016/smicha},
	keywords = {GARCH effects }
}