@misc{PMFA_2011_56_2_a9,
     title = {Zpr\'avy a ozn\'amen{\'\i}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {168--174},
     year = {2011},
     volume = {56},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2011_56_2_a9/}
}