TY - JOUR T1 - On the $ \beta $-Particles Reflected by Sheets of Matter of Different Thicknesses JF - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934) VL - 87 IS - 593 SP - 100 EP - 108 PY - 1912/08/13/ UR - http://dx.doi.org/10.1098/rspa.1912.0062 M3 - doi:10.1098/rspa.1912.0062 AU - Wilson, W. ER -