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Danjon-Skala (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Danjon-Skala" in German language version.

refsWebsite
Global rank German rank
1google.de
2,106th place
139th place

google.de

books.google.de

  • Neil Bone: Observing Meteors, Comets, Supernovae and other Transient Phenomena. Springer Verlag, London 1999, ISBN 1-85233-017-1, S. 87f (Google books)