<h1>Hultgren, Ralph Raymond</h1>
<h2>Article from <a href="https://authors.library.caltech.edu">CaltechAUTHORS</a></h2>
<ul>
<li>Pauling, Linus and Hultgren, Ralph (1933) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20190201-160638098">The Crystal Structure of Sulvanite, Cu_3VS_4</a>; Zeitschrift fur Kristallographie - Crystalline Materials; Vol. 84; No. 1-6; 204-212; <a href="https://doi.org/10.1524/zkri.1933.84.1.204">10.1524/zkri.1933.84.1.204</a></li>
<li>Hultgren, Ralph (1932) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20190201-155742133">Equivalent Chemical Bonds Formed by s, p, and d  Eigenfunctions</a>; Physical Review; Vol. 40; No. 6; 891-907; <a href="https://doi.org/10.1103/PhysRev.40.891">10.1103/PhysRev.40.891</a></li>
<li>Hultgren, Ralph (1932) <a href="https://resolver.caltech.edu/CaltechAUTHORS:20190201-154544118">The Spark-in-Flame Method of Spectrographic Analysis and a Study of the Mutual Effects of Elements on one Another's Emission</a>; Journal of the American Chemical Society; Vol. 54; No. 6; 2320-2328; <a href="https://doi.org/10.1021/ja01345a020">10.1021/ja01345a020</a></li>
</ul>