@article{10_21136_CPMF_1880_109293,
     author = {\v{C}ech\'a\v{c}, Fr. Fr.},
     title = {O \v{c}tvrt\'em stavu aggrega\v{c}n{\'\i}m \v{c}ili o hmot\v{e} z\'a\v{r}{\'\i}c{\'\i}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {180--190},
     publisher = {mathdoc},
     volume = {09},
     number = {4},
     year = {1880},
     doi = {10.21136/CPMF.1880.109293},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1880.109293/}
}