@misc{PMFA_2022_67_2_a5,
     title = {Jubilea},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {131--132},
     year = {2022},
     volume = {67},
     number = {2},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_2022_67_2_a5/}
}