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web.archive.org
G. Montanari, "Sopra la sparizione d'alcune stelle et altre novità celesti", in: Prose de Signori Accademici Gelati di Bologna (Bologna: Manolessi, 1671), pp. 369-92 (Google booksArxivləşdirilib 2021-02-05 at the Wayback Machine)
6 August 2003. Archived from the original on 22 June 2006. Retrieved 31 July 2006.