@article{UM_2010_18_1_a1,
     author = {Sm\'ykalov\'a, Radka},
     title = {Eulerova reforma goniometrie},
     journal = {U\v{c}itel matematiky},
     pages = {14--27},
     year = {2010},
     volume = {18},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2010_18_1_a1/}
}