<h1>Gibson, Andrew Douglas</h1>
<h2>Article from <a href="https://authors.library.caltech.edu">CaltechAUTHORS</a></h2>
<ul>
<li>Anderson, William W. and Ahrens, Thomas J., el al. (1996) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20141024-115404323">Emplacement of penetrators into planetary surfaces</a>; Journal of Geophysical Research E; Vol. 101; No. E9; 21137-21149; <a href="https://doi.org/10.1029/96JE01421">10.1029/96JE01421</a></li>
</ul>