@article{10_21136_CPM_1980_108234,
     author = {Dr\'abek, Karel},
     title = {\v{S}edes\'at let doc. {Bo\v{r}ivoje} {Kepra}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {424--427},
     publisher = {mathdoc},
     volume = {105},
     number = {4},
     year = {1980},
     doi = {10.21136/CPM.1980.108234},
     mrnumber = {597920},
     zbl = {0447.01011},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1980.108234/}
}