@article{UM_1995_3_2_a13,
     author = {S\'ykora, V\'aclav},
     title = {Jak u\v{c}it matematice \v{z}\'aky ve v\v{e}ku 11-15 let},
     journal = {U\v{c}itel matematiky},
     pages = {50--52},
     year = {1995},
     volume = {3},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_1995_3_2_a13/}
}