TY  - JOUR
T1  - The Leakage of Helium from Radio-Active Minerals
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 82
IS  - 553
SP  - 166
EP  - 169
PY  - 1909/05/06/
UR  - http://dx.doi.org/10.1098/rspa.1909.0019
M3  - doi:10.1098/rspa.1909.0019
AU  - Strutt, R.
ER  -