23rd International Karstologica -School Classicak Karst - 50th Anni Int Krarst

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Full details at:

http://www.wherevent.com/detail/European-Speleological-Federation-23rd-International-Karstological-School-Classical-Karst-23eme-Ecole-Internationale-de-Karstologie-%E2%80%9CKarst-Classique%E2%80%9D