@article{UM_1994_2_4_a11,
     author = {Calda, Emil},
     title = {K \'uloh\'am o p\v{e}ti cestovatel{\'\i}ch a dvou symfoni{\'\i}ch {L.} van {Beethovena}},
     journal = {U\v{c}itel matematiky},
     pages = {46--47},
     year = {1994},
     volume = {2},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/UM_1994_2_4_a11/}
}