<div class="description">
<p>Journal of Research of the National Bureau of Standards
</p>
<br>Subjects: Atomic energy levels; isoelectronic sequence; praseodymiun; rare earth; spectrum; sliding spark discharge lamp</div>
<div class="fn value">
<dl><dd>Kaufman, Victor</dd>
<dd>Sugar, Jack</dd></dl></div>
Internet Archive identifier