On an expansion apparatus for making visible the tracks of ionising particles in gases and some results obtained by its use
- 19 September 1912
- 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. 87 (595), 277-292
- https://doi.org/10.1098/rspa.1912.0081