@book{532570,
	author = {Layton, Richard A.},
	title = {Principles of analytical system dynamics /},
	publisher = {Springer,},
	year = {c1998.},
	series = {Mechanical engineering series},
	address = {New York :},
	url = {http://www.loc.gov/catdir/enhancements/fy0815/97045237-d.html}
}