Donald V. Helmberger

Strong ground motion : N.S.F. Seminar-Workshop Proceedings

Paul C. Jennings, Donald V. Helmberger, 1978 .

Synthesis of San Fernando strong-motion records

Thomas H. Heaton, Donald V. Helmberger, 1978 .

Source characteristics of the 17 January 1994 Northridge, California, earthquake from regional broadband modeling

Donald V. Helmberger, Xi J. Song, Laura E. Jones, 1995, Bulletin of the Seismological Society of America.