@article{CMUC_1991__32_1_a10,
     author = {Sgall, Ji\v{r}{\'\i} and Sochor, Anton{\'\i}n},
     title = {Revealed automorphisms},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {105--113},
     publisher = {mathdoc},
     volume = {32},
     number = {1},
     year = {1991},
     mrnumber = {1118293},
     zbl = {0735.03026},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1991__32_1_a10/}
}