TY - JOUR T1 - The Ionisation of Various Gases by the $ \beta $-Rays of Actinium JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 83 IS - 565 SP - 530 EP - 533 PY - 1910/04/14/ UR - http://dx.doi.org/10.1098/rspa.1910.0042 M3 - doi:10.1098/rspa.1910.0042 AU - Kleeman, R. ER -