TY  - JOUR
T1  - On a Theory of the Second Order Longitudinal Spherical Aberration for a Symmetrical Optical System
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 97
IS  - 683
SP  - 196
EP  - 198
PY  - 1920/04/15/
UR  - http://dx.doi.org/10.1098/rspa.1920.0025
M3  - doi:10.1098/rspa.1920.0025
AU  - Baker, T.
AU  - Filon, L.
ER  -