@misc{PMFA_1972_17_4_a11,
     title = {Zpr\'avy a jubilea},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {222--223},
     year = {1972},
     volume = {17},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1972_17_4_a11/}
}