@article{PMFA_1991__36_4_a4,
     author = {Hineva, Stefka and Tzenova, Ivana},
     title = {\v{C}e\v{s}t{\'\i} geomet\v{r}i na sofijsk\'e univerzit\v{e}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {237--242},
     publisher = {mathdoc},
     volume = {36},
     number = {4},
     year = {1991},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1991__36_4_a4/}
}