@misc{10_21136_CPMF_1931_121415,
     title = {Drobnosti},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {20--D23},
     year = {1931},
     volume = {60},
     number = {2},
     doi = {10.21136/CPMF.1931.121415},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1931.121415/}
}