@book{25950,
	author = {Barthelemy, Jean-Pierre. and Cohen, G.},
	title = {Algorithmic complexity and communication problems /},
	publisher = {UCL Press,},
	year = {1996.},
	address = {London :},
	url = {http://www.loc.gov/catdir/enhancements/fy0731/97141792-d.html}
}