@article{10_21136_CPMF_1950_122340,
     author = {Seifert, Ladislav},
     title = {Pozn\'amky o plo\v{s}e vytvo\v{r}en\'e oskula\v{c}n{\'\i}mi kru\v{z}nicemi prostorov\'e k\v{r}ivk},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {D49},
     publisher = {mathdoc},
     volume = {75},
     number = {1},
     year = {1950},
     doi = {10.21136/CPMF.1950.122340},
     mrnumber = {0036556},
     zbl = {0035.37303},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1950.122340/}
}