TY  - BOOK
AU  - Kopal, Zdenek ed.
TI  - Advances in astronomy and astrophysics: vol. 5
PY  - 1967///
CY  - Newyork
PB  - Academic Press
KW  - Astronomy
KW  - Astronomy and Astrophysics Thesaurus
KW  - Astrophysics
ER  -