@article{CMUC_1972__13_4_a12,
     author = {Jambor, Pavel and Be\v{c}v\'a\v{r}, Jind\v{r}ich},
     title = {On general concept of basic subgroups},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {745--761},
     publisher = {mathdoc},
     volume = {13},
     number = {4},
     year = {1972},
     mrnumber = {0315017},
     zbl = {0251.20056},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1972__13_4_a12/}
}