por Chen, Jian-Chu | Lysmer, John, coaut.Seed, H. Bolton, coaut | University of California, Berkeley. Earthquake Engineering - Research CenterE. U. Army Research Office.
por Martín, G. R | Seed, H. Bolton, coaut.
por Idriss, I.M | Seed, H. Bolton, coaut.
por Mejía, Lelio H | Seed, H. Bolton, coaut | University of California, Berkeley. Earthquake Engineering -Research Center.