@article{UM_2017_25_1_a2,
     author = {Bor\r{u}vkov\'a, Radka and Emanovsk\'y, Petr},
     title = {M\r{u}\v{z}e skupinov\'a v\'yuka matematiky zlep\v{s}it vz\'ajemn\'e vztahy mezi \v{z}\'aky?},
     journal = {U\v{c}itel matematiky},
     pages = {20--31},
     year = {2017},
     volume = {25},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2017_25_1_a2/}
}