Grotta Nera (Slovenia) (Italian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Grotta Nera (Slovenia)" in Italian language version.

refsWebsite
Global rank Italian rank
215th place
4th place
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catastogrotte.it

  • Grotta Nera, su Catasto storico delle grotte, Commissione Grotte Eugenio Boegan - Società Alpina delle Giulie, sezione di Trieste del Club Alpino Italiano.

google.it

books.google.it

postojnska-jama.eu