@article{CMJ_2008_58_2_a2,
     author = {Jakub{\'\i}kov\'a-Studenovsk\'a, Danica},
     title = {On ideal extensions of partial monounary algebras},
     journal = {Czechoslovak Mathematical Journal},
     pages = {331--344},
     year = {2008},
     volume = {58},
     number = {2},
     mrnumber = {2411093},
     zbl = {1174.08300},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_2008_58_2_a2/}
}