Lavelle, F.M. <br/><br/>
Seismic floor response spectra for a combined system by Gre-en's functions / by F.M. Lavelle, L.A. Bergman and P.D. Spa-nos 

 - Buffalo, New York : National Center for Earthquake Engineering Research 
 - [39] p. 
 - Technical report NCEER ; 88-0011 .