@book{412403,
	author = {Cameron, Peter J. and Lint, Jacobus Hendricus van.},
	title = {Designs, graphs, codes, and their links /},
	publisher = {Cambridge University Press,},
	year = {1991.},
	address = {Cambridge ;},
	edition = {1st},
	url = {http://www.loc.gov/catdir/description/cam025/92135247.html}
}