HMS X1 (Czech Wikipedia)

Analysis of information sources in references of the Wikipedia article "HMS X1" in Czech language version.

refsWebsite
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  • X1 submarine (1925) [online]. Navypedia.org [cit. 2018-11-27]. Dostupné online. (anglicky) 

web.archive.org

  • X1: Experimental Cruiser Submarine [online]. Csubmarine.org [cit. 2018-11-27]. Dostupné v archivu pořízeném dne 2019-01-30. (anglicky)