@article{UM_1996__4_1_a9,
     author = {Be\v{c}v\'a\v{r}, Jind\v{r}ich},
     title = {Profesor a humorista {Jaroslav} {\v{Z}\'ak}},
     journal = {U\v{c}itel matematiky},
     pages = {54--59},
     publisher = {mathdoc},
     volume = {04},
     number = {1},
     year = {1996},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/UM_1996__4_1_a9/}
}