TY  - JOUR
T1  - A New Radio-Active Element, Which Evolves Thorium Emanation. Preliminary Communication
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 76
IS  - 508
SP  - 115
EP  - 117
PY  - 1905/05/24/
UR  - http://dx.doi.org/10.1098/rspa.1905.0009
M3  - doi:10.1098/rspa.1905.0009
AU  - Hahn, O.
ER  -