@misc{PMFA_1967_12_4_a7,
     title = {V\'yro\v{c}{\'\i} \'umrt{\'\i} {B.} {Riemanna}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {247},
     year = {1967},
     volume = {12},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1967_12_4_a7/}
}