Popov, Egor P. <br/><br/>
Hysteretic behavior of steel columns / by Egor P. Popov, Vi-telmo V. Bertero, S. Chandramouli. 

 - Berkeley, Calif. : University of California, College of Engineering 
 - 225 p. 
 - Report ; No. UCB / EERC 75-11. .
<br/><br/> "A report on research sponsored by the American Iron and St-eel Institute and the National Science Foundation, Grant No-. AEN73-07732, Subproject 0-21987".