TY  - JOUR
T1  - Spark Spectra of Various Elements in Helium in the Extreme Ultra-Violet
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 98
IS  - 689
SP  - 109
EP  - 114
PY  - 1920/10/01/
UR  - http://dx.doi.org/10.1098/rspa.1920.0056
M3  - doi:10.1098/rspa.1920.0056
AU  - McLennan, J.
AU  - Lewis, A.
ER  -