TY - BOOK AU - Dasgupta, Gautam AU - Chopra, Anil K., coaut. ED - University of California, Earthquake Engineering Research C-enter TI - Dynamic stiffness matrices for homogeneous viscoelastic hal-fplanes / by Gautam Dasgupta, Anil K. Chopra CY - Berkeley, Calif. : University of California, Earthquake Engineering Research C- N1 - "A report on research conducted under Grants ATA74-20554 an-d ENV 76-80073 from the National Science Foundation" ER -