TY  - JOUR
T1  - A Note on the Absorption of <latex>$ \beta $</latex>-Rays
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 87
IS  - 598
SP  - 487
EP  - 489
PY  - 1912/12/13/
UR  - http://dx.doi.org/10.1098/rspa.1912.0102
M3  - doi:10.1098/rspa.1912.0102
AU  - Gray, J.
ER  -