@misc{PMFA_2022_67_1_a5,
     title = {Zpr\'avy a ozn\'amen{\'\i}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {51--54},
     year = {2022},
     volume = {67},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2022_67_1_a5/}
}