TY - BOOK AU - Asfura, Alejandro AU - Kiureghian, Armen der, coaut. ED - University of California, Berkeley. Earthquake Engineering -Research Center TI - new floor response spectrum method for seismic analysis of -multiply supported secondary systems / by Alejandro Asfura,- Armen der Kiureghian CY - Berkeley, Calif. : e Engineering Research Center N1 - "Report to the National Science Foundation and to the Elect-ric Power Research Institute" ER -