@article{10_21136_CPMF_1950_120768,
     author = {Langr, Josef},
     title = {\v{C}ty\v{r}mi imagi\'arn{\'\i}mi body polo\v{z}iti ku\v{z}elo\v{s}e\v{c}ku podobnou dan\'e},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {D145},
     publisher = {mathdoc},
     volume = {75},
     number = {2},
     year = {1950},
     doi = {10.21136/CPMF.1950.120768},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1950.120768/}
}