Veletsos, A.S. <br/><br/>
Effect of inelastic behavior on the response of simple syst-ems to earthquake motions / by A.S. Veletsos and N.M. Newma-rk 

 - Urbana, Illinois : University of Illinois, Department of Civil Engineering 
 - [18] p. 
 - 219 Civil engineering studies. Structural research series ; no.- .