@book{14633,
	author = {Hsu, Hwei P. and Ranjan, Rakesh},
	title = {Signals and systems /},
	publisher = {Tata McGraw-Hill Publishing},
	year = {2008},
	series = {Schaum's outlines},
	address = {New Delhi},
	edition = {2nd ed.},
	note = {Includes bibliographical references  and index.},
	url = {http://www.loc.gov/catdir/enhancements/fy0615/2003064970-d.html}
}