@article{10_21136_CPMF_1933_121800,
     author = {Dittrich, Arno\v{s}t},
     title = {Kalend\'a\v{r} {May\r{u}}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {47--R57},
     year = {1933},
     volume = {62},
     number = {3},
     doi = {10.21136/CPMF.1933.121800},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1933.121800/}
}