@misc{10_21136_CPM_1952_117044,
     title = {V\'yznam d\v{e}jin p\v{r}{\'\i}rodn{\'\i}ch v\v{e}d pro tv\r{u}r\v{c}{\'\i} pr\'aci},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {219--226},
     publisher = {mathdoc},
     volume = {077},
     number = {3},
     year = {1952},
     doi = {10.21136/CPM.1952.117044},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1952.117044/}
}