TY  - BOOK
AU  - Kopal, Zdenek.
TI  - Proceedings of a Symposium on Astronomical Optics and Related Subjects
U1  - 535.8 
PY  - 1956///
CY  - Amsterdam
PB  - North-Holland Publishing Co.
KW  - Astronomical Optics
KW  - Optics-Astronomical
KW  - G-Physics
ER  -