@article{10_21136_CPMF_1930_121543,
     author = {Matas, Bohumil},
     title = {Prom{\'\i}t\'an{\'\i} na jednu pr\r{u}m\v{e}tnu},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {47--D48},
     year = {1930},
     volume = {59},
     number = {4},
     doi = {10.21136/CPMF.1930.121543},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1930.121543/}
}