1921 in science (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "1921 in science" in English language version.

refsWebsite

Global rank English rank

2web.archive.org

1^st place

1^st place

6^th place

6^th place

75^th place

83^rd place

1uni-saarland.de

low place

low place

336^th place

216^th place

1historicbridges.org

low place

low place

low place

low place

1books.google.com

3^rd place

3^rd place

archive.org

Crilly, Tony (2007). 50 Mathematical Ideas You Really Need to Know. London: Quercus. p. 57. ISBN 978-1-84724-008-8.
Macmahon, Major P. A. (1921). New Mathematical Pastimes. Cambridge: University Press. p. 101.

books.google.com

Smith, Vicki; Collard, Patrizia; Nicolson, Paula (2012). Key Concepts In Counselling And Psychotherapy: A Critical A-Z Guide To Theory. McGraw-Hill Education (UK). p. 21. ISBN 978-0-335-24221-4.

brynje.no

"The story of Brynje". Norway: Brynje. Retrieved 2024-11-06.

historicbridges.org

United States patent #1,394,519.

nasa.gov

Chertok, Boris (31 January 2005). Rockets and People (Volume 1 ed.). National Aeronautics and Space Administration. pp. 164–165. Retrieved 29 May 2022.

thestar.com

Carere, Suzanne (2007-07-25). "Age-old children's disease back in force". thestar.com. Toronto. Archived from the original on 2008-05-17. Retrieved 2012-01-26.

uni-saarland.de

nssp.uni-saarland.de

"The Collisions of Particles with Hydrogen Nuclei" (PDF). Philosophical Magazine. 42 (252): 923–940. 1921. Archived from the original (PDF) on 2014-08-19. Retrieved 2014-08-31.

web.archive.org

"The Collisions of Particles with Hydrogen Nuclei" (PDF). Philosophical Magazine. 42 (252): 923–940. 1921. Archived from the original (PDF) on 2014-08-19. Retrieved 2014-08-31.
Carere, Suzanne (2007-07-25). "Age-old children's disease back in force". thestar.com. Toronto. Archived from the original on 2008-05-17. Retrieved 2012-01-26.