@article{10_21136_CPM_1960_117334,
     author = {Vala, Josef},
     title = {O {Cartanov\v{e}} parametru na nep\v{r}{\'\i}mkov\'ych ploch\'ach},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {300--310},
     publisher = {mathdoc},
     volume = {085},
     number = {3},
     year = {1960},
     doi = {10.21136/CPM.1960.117334},
     mrnumber = {0130629},
     zbl = {0135.21901},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1960.117334/}
}