@article{CMUC_1985__26_3_a5,
     author = {Sochor, Anton{\'\i}n},
     title = {Notes on revealed classes},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {499--514},
     publisher = {mathdoc},
     volume = {26},
     number = {3},
     year = {1985},
     mrnumber = {817823},
     zbl = {0583.03041},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1985__26_3_a5/}
}