Čertova diera (Polish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Čertova diera" in Polish language version.

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web.archive.org

  • Hochmuth Zdenko: Krasové územia a jaskyne Slovenska, w: “Geographia Cassoviensis”, ročník II., 2 / 2008, wyd. Univerzita Pavla Jozefa Šafárika v Košiciach, Košice 2008, ISSN 1337-6748, s. 140 [1]