An inverstigation of the ionising power of the positive ions from a glowing tantalum filament in helium
- 15 March 1919
- journal article
- Published by The Royal Society in Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character
- Vol. 95 (670), 333-353
- https://doi.org/10.1098/rspa.1919.0013