TY  - JOUR
T1  - On the Classification of Stars of the <latex>$\delta $</latex> Cephei Class
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 61
SP  - 445
EP  - 455
PY  - 1897/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1897.0059
M3  - doi:10.1098/rspl.1897.0059
AU  - Lockyer, J.
ER  -