@misc{PMFA_2011_56_4_a7,
     title = {Zpr\'avy a ozn\'amen{\'\i}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {339--347},
     year = {2011},
     volume = {56},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2011_56_4_a7/}
}