@misc{PMFA_1978_23_4_a8,
     title = {Jubilea a zpr\'avy},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {223--226},
     year = {1978},
     volume = {23},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1978_23_4_a8/}
}