@article{CMJ_1998_48_1_a9,
     author = {Dudek, J\'ozef},
     title = {Small idempotent clones. {I}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {105--118},
     year = {1998},
     volume = {48},
     number = {1},
     mrnumber = {1614013},
     zbl = {0931.20055},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_1998_48_1_a9/}
}