Strong-motion accelerograph array with telephone line inter-connections / by W.O. Keightley.
Keightley, W. O.
Strong-motion accelerograph array with telephone line inter-connections / by W.O. Keightley. - Pasadena, Calif. : Research Laboratory - 39 p. - Report; no. EERL 70-05 .
Strong-motion accelerograph array with telephone line inter-connections / by W.O. Keightley. - Pasadena, Calif. : Research Laboratory - 39 p. - Report; no. EERL 70-05 .