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16th International Congress of Speleology : Czech Republic, Brno July 21–28,2013 : proceedings
- 1.FILIPPI, M., BOSÁK, P., eds. 16th International Congress of Speleology : Czech Republic, Brno July 21–28,2013 : proceedings. Prague: Czech Speleological Society and the SPELEO2013 and in the co-operation with the International Union of Speleology, 2013. 1. ISBN 978-80-87857-07-6.
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