@book{166273,
	author = {Schmidt-Hebbel, Klaus.},
	title = {Colombia's pension reform:},
	publisher = {World Bank,},
	year = {c1995.},
	series = {World Bank discussion papers,},
	address = {Washington, D.C. :},
	url = {http://elibrary.worldbank.org/content/book/9780821335062}
}