ABSTRACTS FROM ASTRONOMICAL PUBLICATIONS

Autor:	Campbell, W. W., Wilson, H. C., Curtis, Heber D.
Zdroj:	Publications of the Astronomical Society of the Pacific, 1911 Feb 01. 23(135), 57-69.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/40710179 Zobrazit plný text záznamu