@article{PMFA_1973_18_1_a5,
     author = {Vy\v{s}{\'\i}n, Jan},
     title = {V\v{e}deckov\'yzkumn\'a pr\'ace v teorii vyu\v{c}ov\'an{\'\i} matematice},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {32--38},
     year = {1973},
     volume = {18},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1973_18_1_a5/}
}