Ernst Hartwig (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ernst Hartwig" in English language version.

refsWebsite

Global rank English rank

75^th place

83^rd place

167^th place

198^th place

1springerreference.com

low place

low place

1web.archive.org

1^st place

1^st place

1hathitrust.org

441^st place

311^th place

1books.google.com

3^rd place

3^rd place

books.google.com

"Notes". The Journal of the British Astronomical Association (3): 143–144. 1903.

hathitrust.org

babel.hathitrust.org

"Séance du 22 décembre". Le Moniteur Scientifique du Docteur Quesneville: 139. February 1903. Archived from the original on 2020-12-15.

nasa.gov

ssd.jpl.nasa.gov

"JPL Small-Body Database Browser: C/1879 Q2 (Hartwig)". Jet Propulsion Laboratory. Retrieved 12 October 2020.
"JPL Small-Body Database Browser: C/1880 S1 (Hartwig)". Jet Propulsion Laboratory. Retrieved 12 October 2020.
"JPL Small-Body Database Browser: C/1886 T1 (Barnard-Hartwig)". Jet Propulsion Laboratory. Retrieved 12 October 2020.

springerreference.com

Hockey, Thomas (2009). The Biographical Encyclopedia of Astronomers. Springer Publishing. ISBN 978-0-387-31022-0. Retrieved August 22, 2012.

usgs.gov

planetarynames.wr.usgs.gov

"Lunar crater Hartwig". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.
"Martian crater Hartwig". Gazetteer of Planetary Nomenclature. USGS Astrogeology Research Program.

web.archive.org

"Séance du 22 décembre". Le Moniteur Scientifique du Docteur Quesneville: 139. February 1903. Archived from the original on 2020-12-15.