@book{4141,
	author = {Johnson, Steven,},
	title = {Emergence: the connected lives of ants, brains, cities, and software},
	publisher = {Scribner,},
	year = {cop. 2001},
	address = {New York :},
	url = {http://www.loc.gov/catdir/description/simon031/2001032215.html}
}