@article{10_21136_CPM_1958_108304,
     author = {\v{S}ik, Franti\v{s}ek},
     title = {Subdirektn{\'\i} sou\v{c}ty uspo\v{r}\'adan\'ych grup},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {243--244},
     year = {1958},
     volume = {83},
     number = {2},
     doi = {10.21136/CPM.1958.108304},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1958.108304/}
}