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Czechoslovakia and Human Rights . Praha :  Orbis , 1988 . 109 s . [1, of that borrowed 0]

Proceedings of the Fourth International Conference on Ephemeroptera / Vladimír Landa, Tomáš Soldán, Martin Tonner . České Budějovice :  Institut of Entomol. , 1984 . 345 s . [1, of that borrowed 0]