@misc{PMFA_1979_24_1_a6,
     title = {I pomocn\'e materi\'aly zasluhuj{\'\i} pozornost!},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {49},
     year = {1979},
     volume = {24},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1979_24_1_a6/}
}