TY - BOOK AU - Shahrivar, F. AU - Bouwkamp, J.G., coaut. ED - University of California, Berkeley. Earthquake Engineering -Research Center TI - Model study of effects of damage on the vibration propertie-s of steel offshore platforms / by F. Shahrivar and J.G. Bo-uwkamp CY - Berkeley, Calif. : enter N1 - "Report to the National Science Foundation" ER -