@misc{PMFA_1991__36_4_a1,
     title = {[Obrazov\'a p\v{r}{\'\i}loha k \v{c}l\'anku {Sjezdy} {J\v{C}SMF:} {J\v{C}MF} a {JSMF]}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {197--200},
     publisher = {mathdoc},
     volume = {36},
     number = {4},
     year = {1991},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1991__36_4_a1/}
}