@book{6885,
	author = {Cameron, Peter J. and Lint, Jacobus Hendricus van,},
	title = {Graphs, codes, and designs /},
	publisher = {Cambridge University Press,},
	year = {1980.},
	series = {London Mathematical Society lecture note series  ; no. 43},
	address = {Cambridge ;},
	url = {http://www.loc.gov/catdir/enhancements/fy0803/80040358-d.html}
}