@article{UM_2001_9_1_a2,
     author = {Sikorov\'a, Renata},
     title = {\v{C}{\'\i}slo $e$ a jeho vlastnosti (3)},
     journal = {U\v{c}itel matematiky},
     pages = {19--24},
     year = {2001},
     volume = {9},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2001_9_1_a2/}
}