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- [46] Secondary standards of wave- lengths international system, in the arc spectrum of iron ASTROPHYSICAL JOURNAL, 1910, 32 (03): : 215 - 216
- [49] Note on the effect of pressure on the wave-lengths of the international secondary standards in the spectrum of iron JOURNAL OF RESEARCH OF THE NATIONAL BUREAU OF STANDARDS, 1940, 24 (04): : 389 - 393
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