@article{UM_1994_2_3_a4,
     author = {Hrub\'y, Dag},
     title = {O sou\v{c}asn\'em postaven{\'\i} element\'arn{\'\i} geometrie ve v\'yuce matematiky},
     journal = {U\v{c}itel matematiky},
     pages = {12--13},
     year = {1994},
     volume = {2},
     number = {3},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_1994_2_3_a4/}
}