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Forelle (U-Boot) (German Wikipedia)

Analysis of information sources in references of the Wikipedia article "Forelle (U-Boot)" in German language version.

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

google.de

books.google.de

  • Paul E. Fontenoy: Submarines. An illustrated history of their impact. ABC-CLIO, Santa Barbara, Calif 2007, ISBN 1-85109-563-2, S. 10, 90 (online).