%0 Journal Article %A Ševečková, Jitka %A Šik, František %T Complete permutability of partitions in a set. I %J Archivum mathematicum %D 1989 %P 95-102 %V 25 %N 1-2 %U http://geodesic.mathdoc.fr/item/ARM_1989_25_1-2_a12/ %G en %F ARM_1989_25_1-2_a12