TY  - BOOK
AU  - Efremov, YU N., ed.
AU  - Kholopon, P N., ed.
AU  - Kukarkin, B. V., ed.
TI  - Second Supplement to the Third Edition of the General Catalogue of Variable Stars : Containing Information on 249 Variab
PY  - 1974///
CY  - Moscow
PB  - Publishing House "NAVKA"
KW  - Astronomy and Astrophysics Thesaurus
KW  - Catalogue-Variable Stars
KW  - Variable Stars Catalogue
ER  -