@article{10_21136_CPMF_1928_121377,
     author = {Hor\'ak, Zden\v{e}k},
     title = {T\v{r}en{\'\i} v hmotn\'ych syst\'emech},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {260--266},
     publisher = {mathdoc},
     volume = {57},
     number = {3-4},
     year = {1928},
     doi = {10.21136/CPMF.1928.121377},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1928.121377/}
}