Tzong, Tsair-Jyh <br/><br/>
Two-dimensional hybrid modelling of soil structure interact-ion / by Tsair-Jyn Tzong, Sunil Gupta and Joseph Penzien 

 - Berkeley, Calif. : e Engineering Research Center 
 - 50 p. 
 - Report ; No. UCB / EERC 81-11 .
<br/><br/> Report to the National Science FoundationAugust 1981