<h1>Helmberger, Donald V.</h1>
<h2>Monograph from <a href="https://authors.library.caltech.edu">CaltechAUTHORS</a></h2>
<ul>
<li>Burdick, L. J. and Garnero, E. J., el al. (1991) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20191101-084920369">Time Domain Regional Discriminants</a></li>
<li>Helmberger, Donald V. and Jennings, Paul C. (1978) <a href="https://resolver.caltech.edu/CaltechEERL:EERL.1978.002">Strong ground motion : N.S.F. Seminar-Workshop Proceedings</a></li>
</ul>