por Chopra, Anil K | Chakrabarti, P., coaut.Gupta, Sunil, coaut | University of California, Berkeley. Earthquake Engineering -Research CenterNational Science Foundation (E.U.).
por Gupta, Sunil, coaut | University of California, Berkley. Earthquake Engineering R-esearch Center.
por Tzong, Tsair-Jyh | Gupta, Sunil, coaut.Penzien, Joseph, coaut | University of California, Berkeley. Earthquake Engineering -Research Center.