@article{UM_2008__16_2_a5,
     author = {Mahnelov\'a, Hana},
     title = {Objeven{\'\i} {Ludolfova} \v{c}{\'\i}sla pomoc{\'\i} \v{s}kolsk\'eho matematick\'eho softwaru {CABRI}},
     journal = {U\v{c}itel matematiky},
     pages = {107--114},
     publisher = {mathdoc},
     volume = {16},
     number = {2},
     year = {2008},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/UM_2008__16_2_a5/}
}