TY - BOOK AU - Bhatti, M.A., coaut. ED - University of California, Berkeley. Earthquake Engineering -Research Center TI - OPTNSR: an interactive software system for optimal design o-f statically and dynamically loaded structures with nonline-ar response / by M.A. Bhatti...[et al.] CY - Berkeley, Calif. : University of California, College of Engineering N1 - "Prepared under the sponsorship of the National Science Fou-ndation Grant PFR-7908261" ER -