@article{UM_1992_0_2_a4,
     author = {Hejn\'y, Milan},
     title = {Strategick\'e z\'am\v{e}ry rozvoje mal\'ych \v{s}kol},
     journal = {U\v{c}itel matematiky},
     pages = {10--11},
     year = {1992},
     volume = {0},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_1992_0_2_a4/}
}