TY  - JOUR
T1  - On the Ultra-Violet Spectrum of Ytterbium
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 78
IS  - 522
SP  - 154
EP  - 156
PY  - 1906/08/18/
UR  - http://dx.doi.org/10.1098/rspa.1906.0066
M3  - doi:10.1098/rspa.1906.0066
AU  - Crookes, W.
ER  -