Report of the committee on variable stars in clusters. Appendix II - International Astronomical Union. General Assembly 1970 : Brighton, Anglie); Sawyer Hogg, Helen, 1905-1993 ([Ontario : Richmond Hill, 1970)
Keywords: astrofyzika; astronomická pozorování; astronomie; proměnné hvězdy; astronomical observations; astronomy; astrophysics; variable stars; separáty; offprints