TY - BOOK AU - Filippou, Filip C. AU - Issa, Ahmad / coaut. ED - University of California, Berkeley. Earthquake Engineering -Research Center TI - Nonlinear analysis of reinforced concrete frames under cycl-ic load reversals / Filip C. Filippou, Ahmad Issa CY - Berkeley, Calif. : enter N1 - "A report on research conducted under Grant ECE-8657525 fro-m the National Science Foundation" ER -