TY  - JOUR
T1  - On a Re-Determination of the Principal Line in the Spectrum of the Nebula in Orion, and on the Character of the Line
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 48
SP  - 202
EP  - 213
PY  - 1890/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1890.0027
M3  - doi:10.1098/rspl.1890.0027
AU  - Huggins, W.
AU  - Huggins, M.
ER  -