TY  - JOUR
T1  - Optical Investigation of Crystallised Nitrogen, Argon, Methane, and Some of the Simpler Organic Compounds, of Low Melting Points
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 87
IS  - 596
SP  - 371
EP  - 380
PY  - 1912/10/02/
UR  - http://dx.doi.org/10.1098/rspa.1912.0091
M3  - doi:10.1098/rspa.1912.0091
AU  - Wahl, W.
ER  -