@book{50161,
	author = {Zerve, Aspasia.},
	title = {Spatial variation of seismic ground motions :},
	publisher = {CRC Press,},
	year = {c2009},
	series = {Advances in engineering},
	address = {Boca Raton :},
	url = {http://www.loc.gov/catdir/toc/ecip0814/2008014225.html}
}