@book{publication-6555,
	address={Berlin/Heidelberg},
	editor={Lungarella, Massimiliano and Iida, Fumiya and Bongard, Josh C. and Pfeifer, Rolf},
	series={Lecture Notes in Artificial Intelligence},
	title={50 Years of Artificial Intelligence},
	volume={LNAI 4850},
	year=2007,
}