@article{PMFA_2001_46_1_a2,
     author = {Jelen, Josef},
     title = {Paradoxy prostoro\v{c}asu},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {18--32},
     year = {2001},
     volume = {46},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2001_46_1_a2/}
}