@book{71021,
	author = {Andrew D. Dimarogonas, Stefanos A. Paipetis, Thomas G. Chondros},
	title = {Analytical Methods in Rotor Dynamics},
	publisher = {Springer},
	year = {2014},
	address = {Germany},
	url = {http://link.springer.com/book/10.1007/978-94-007-5905-3}
}