@article{PMFA_1966__11_3_a11,
     author = {Ko\v{s}\v{t}\'al, Rostislav},
     title = {\v{S}est\'y semin\'a\v{r} pro u\v{c}itele fyziky \v{s}kol 2. cyklu},
     journal = {Pokroky matematiky, fyziky a astronomie},
     publisher = {mathdoc},
     volume = {11},
     number = {3},
     year = {1966},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1966__11_3_a11/}
}