@misc{10_21136_CPMF_1926_121959,
     title = {R\r{u}zn\'e zpr\'avy},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {430--432},
     year = {1926},
     volume = {55},
     number = {4},
     doi = {10.21136/CPMF.1926.121959},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1926.121959/}
}