@article{UM_2010__18_1_a5,
     author = {Ku\v{r}ina, Franti\v{s}ek},
     title = {Chv\'ala "biflov\'an{\'\i}"},
     journal = {U\v{c}itel matematiky},
     pages = {49--52},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {2010},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/UM_2010__18_1_a5/}
}