Magnetic Observations Made at Stonyhurst College Observatory, from April 1863 to March 1870

Autor:	Perry, S. J.
Zdroj:	Philosophical Transactions of the Royal Society of London, 1871 Jan 01. 161, 69-75.
Databáze:	JSTOR Journals
Externí odkaz:	https://www.jstor.org/stable/109026 Zobrazit plný text záznamu