@misc{PMFA_1981_26_4_a8,
     title = {Nov\'e knihy},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {240--[240a]},
     year = {1981},
     volume = {26},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1981_26_4_a8/}
}