<h1>Groom, Donald Eugene</h1> <h2>Monograph from <a href="https://authors.library.caltech.edu">CaltechAUTHORS</a></h2> <ul> <li>Marshall, J. H. and Groom, D. E. (1962) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20180130-102942984">A 25 Input Pulse Height Recording System</a>; <a href="https://doi.org/10.7907/Z9ZG6QFH">10.7907/Z9ZG6QFH</a></li> </ul>