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Angle of parallelism (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Angle of parallelism" in English language version.

refsWebsite
Global rank English rank
2archive.org
6th place
6th place

archive.org

  • Nikolai Lobachevsky (1840) G. B. Halsted translator (1891) Geometrical Researches on the Theory of Parallels
  • Bonola, Roberto (1955). Non-Euclidean geometry : a critical and historical study of its developments (Unabridged and unaltered republ. of the 1. English translation 1912. ed.). New York, NY: Dover. ISBN 0-486-60027-0.