@article{UM_2007__15_4_a4,
     author = {Stein, David},
     title = {Matematick\'e v\'alky v {USA} (4): {V\'alka} a nad\v{e}je na sm{\'\i}r},
     journal = {U\v{c}itel matematiky},
     pages = {232--246},
     publisher = {mathdoc},
     volume = {15},
     number = {4},
     year = {2007},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/UM_2007__15_4_a4/}
}