@article{UM_2007__15_3_a0,
     author = {Calda, Emil},
     title = {O bodech "podobn\'ych" severn{\'\i}mu p\'olu a tak\'e o rovnob\v{e}\v{z}k\'ach},
     journal = {U\v{c}itel matematiky},
     pages = {129--132},
     publisher = {mathdoc},
     volume = {15},
     number = {3},
     year = {2007},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/UM_2007__15_3_a0/}
}