@book{11689,
	author = {Karim, Mohammad A. and Chen, Xinghao,},
	title = {Digital design: basic concepts and principles },
	publisher = {CRC Press/Taylor & Francis,},
	year = {c2008.},
	address = {Boca Raton, FL :},
	url = {http://www.loc.gov/catdir/toc/ecip0718/2007020768.html}
}