TY  - JOUR
T1  - The Minimum Electron Energies Associated with the Excitation of the Spectra of Helium
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 100
IS  - 707
SP  - 599
EP  - 620
PY  - 1922/03/01/
UR  - http://dx.doi.org/10.1098/rspa.1922.0020
M3  - doi:10.1098/rspa.1922.0020
AU  - Davies, A.
ER  -
