@article{PMFA_1972_17_1_a5,
     author = {Viktora, V\'aclav},
     title = {Ke studentsk\'e v\v{e}deck\'e pr\'aci v teorii vyu\v{c}ov\'an{\'\i} matematice},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {30--32},
     year = {1972},
     volume = {17},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1972_17_1_a5/}
}