Johann Georg Hagen (Norwegian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Johann Georg Hagen" in Norwegian language version.

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1enciklopedija.hr

1,369^th place

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1newspapers.com

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86^th place

archive.org

The Catholic Encyclopedia and its Makers. The Encyclopedia Press. 1917. s. 72. Besøkt 9. juni 2021 – via archive.org.

brockhaus.de

Brockhaus Enzyklopädie, Brockhaus Online-Enzyklopädie-id hagen-johann-georg, besøkt 9. oktober 2017^{[Hentet fra Wikidata]}

doi.org

Parkhurst, J. A. (1907). «Review: Atlas Stellarum Variabilium, by Johann G. Hagen». Astrophysical Journal. 25: 361–362. Bibcode:1907ApJ....25..361.. doi:10.1086/141461.
Jacoby, Harold (1891). «Review: The photochronograph, and its applications to star transits, by J. G. Hagen and G. A. Fargis». Bull. Amer. Math. Soc. 1 (2): 44–46. doi:10.1090/s0002-9904-1891-00025-5.
Ziwet, Alexander (1897). «Review: Index operum Leonardi Euleri, by J. G. Hagen». Bull. Amer. Math. Soc. 3 (7): 256. doi:10.1090/s0002-9904-1897-00417-7.

enciklopedija.hr

Hrvatska enciklopedija, Hrvatska enciklopedija-ID 24068^{[Hentet fra Wikidata]}

harvard.edu

adsabs.harvard.edu

Parkhurst, J. A. (1907). «Review: Atlas Stellarum Variabilium, by Johann G. Hagen». Astrophysical Journal. 25: 361–362. Bibcode:1907ApJ....25..361.. doi:10.1086/141461.

lzmk.hr

proleksis.lzmk.hr

Proleksis Encyclopedia, Proleksis enciklopedija-ID 25118^{[Hentet fra Wikidata]}

newspapers.com

«Father Hagen Dies, Vatican Astronomer». Courier-Post. Vatican City. INS. 6. september 1930. s. 2 – via Newspapers.com.

vatican.va

«Maria Elisabetta Hesselblad (1870–1957)». Vatican News. Besøkt 9. juni 2021.