TY - BOOK AU - Tzong, Tsair-Jyh AU - Gupta, Sunil, coaut.Penzien, Joseph, coaut. ED - University of California, Berkeley. Earthquake Engineering -Research Center TI - Two-dimensional hybrid modelling of soil structure interact-ion / by Tsair-Jyn Tzong, Sunil Gupta and Joseph Penzien CY - Berkeley, Calif. : e Engineering Research Center N1 - Report to the National Science FoundationAugust 1981 ER -