Yim, Chik-Sing <br/><br/>
Rocking response of rigid blocks to earthquake / Chik-Sing -Yim, Anil K. Chopra, Joseph Penzien 

 - Berkeley, Calif. : e Engineering Research Center 
 - 57 p. 
 - Report ; No. UCB / EERC 80-02 .
<br/><br/> "Report to Sponsor: National Sciencie Foundation""January 1980"