<div class="description">
<p>Journal of Research of the National Bureau of Standards
</p>
<br>Subjects: Energy Levels, Yb I; spectrum, Yb I; wavelengths, Yb I; Yb I; ytterbium; Zeeman effect.</div>
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<dl><dd>Meggers, W.F.</dd>
<dd>Tech, J.L.</dd></dl></div>
Internet Archive identifier