TY  - BOOK
AU  - Fitch,Walter S.
ED  - International Astronomical Union.
ED  - International Astronomical Union
TI  - Multiple periodic variable stars: Proceedings of the International Astronomical Union Colloquium No. 29, held at Budapest, Hungary, 1-5 September 1975 : Invited papers 
SN  - 9630510626
PY  - 1976///
CY  - Budapest, Boston
PB  - Akadémiai Kiadó, D. Reidel Publ. Co.
KW  - Variable stars
KW  - Congresses
N1  - Includes bibliogr. references
ER  -