TY  - JOUR
T1  - The Pupil of an Optical System with Regard to Perspective
JF  - Proceedings of the Royal Society of London. Series A, Containing Papers of a Mathematical and Physical Character (1905-1934)
VL  - 85
IS  - 580
SP  - 462
EP  - 470
PY  - 1911/08/15/
UR  - http://dx.doi.org/10.1098/rspa.1911.0058
M3  - doi:10.1098/rspa.1911.0058
AU  - Beck, C.
ER  -