@article{PMFA_1994_39_1_a4,
     author = {Rojko, Milan},
     title = {U\v{c}itel fyziky},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {44--50},
     year = {1994},
     volume = {39},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1994_39_1_a4/}
}