@misc{PMFA_1988_33_6_a4,
     title = {Jubilea a zpr\'avy},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {345--351},
     year = {1988},
     volume = {33},
     number = {6},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1988_33_6_a4/}
}