TY  - JOUR
T1  - Note on the Absorption-Spectra of Potassium and Sodium at Low Temperatures
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 22
SP  - 362
EP  - 364
PY  - 1873/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1873.0062
M3  - doi:10.1098/rspl.1873.0062
AU  - Roscoe, H.
AU  - Schuster, A.
ER  -