@article{UM_2008_16_2_a8,
     author = {Calda, Emil},
     title = {\v{R}e\v{s}en{\'\i} matematick\'ych r\r{u}znic},
     journal = {U\v{c}itel matematiky},
     pages = {125--128},
     year = {2008},
     volume = {16},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_2008_16_2_a8/}
}