@misc{10_21136_CPMF_1941_121825,
     title = {Zpr\'avy},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {138--D141},
     year = {1941},
     volume = {70},
     number = {Suppl.},
     doi = {10.21136/CPMF.1941.121825},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1941.121825/}
}