@article{UM_2010__18_1_a0,
     author = {Ko\v{c}andrlov\'a, Milada and J\'ara, V\'aclav},
     title = {Stereografick\'a projekce a astrol\'ab},
     journal = {U\v{c}itel matematiky},
     pages = {1--13},
     publisher = {mathdoc},
     volume = {18},
     number = {1},
     year = {2010},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/UM_2010__18_1_a0/}
}