Kantorovich, L. V. <br/><br/>
Seismic risk and principles of seismic zoning / by L. V. Ka-ntorovich, V. I. Kelis Borok, G. M. Molchan. 

 - Cambridge, Mass. : Engineering 
 - [32] p. 
 - Internal study report; No. 43 / Massachusetts Institute of - Technology .