@article{CMUC_1973__14_3_a5,
     author = {Be\v{c}v\'a\v{r}, Jind\v{r}ich and Jambor, Pavel},
     title = {On general concept of basic subgroups. {II.}},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {471--491},
     publisher = {mathdoc},
     volume = {14},
     number = {3},
     year = {1973},
     mrnumber = {0325807},
     zbl = {0266.20055},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1973__14_3_a5/}
}