David Dunlap Observatory (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "David Dunlap Observatory" in Italian language version.

refsWebsite

Global rank Italian rank

234^th place

226^th place

1,601^st place

2,796^th place

low place

2,884^th place

1web.archive.org

1^st place

1^st place

aavso.org

Polaris - The Story Continues Archiviato il 30 settembre 2007 in Internet Archive. Photoelectric Photometry Newsletter, American Association of Variable Star Observers, May 1998

nature.com

Tom Bolton, "Identification of Cygnus X-1 with HDE 226868", Nature, vol. 235 (February 4, 1972) pp. 271-273, doi:10.1038/235271b0

utoronto.ca

news.utoronto.ca

Bruce Rolston, "The First Black Hole", The Bulletin, University of Toronto, November 10, 1997

web.archive.org

Polaris - The Story Continues Archiviato il 30 settembre 2007 in Internet Archive. Photoelectric Photometry Newsletter, American Association of Variable Star Observers, May 1998