McNiven, H.D. <br/><br/>
graphical method for solving the wave reflection-refraction- problem / by H.D. McNiven and Y. Mengi. 

 - Berkeley, Calif. : University of California, Earthquake Engineering Research C- 
 - 26 p. 
 - Report ; No. UCB / EERC 68-3. .
<br/><br/> "Report to: National Science Foundation NSF Grant GK-1097".