@misc{PMFA_1968_13_4_a6,
     title = {Nov\'e knihy},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {257--262},
     year = {1968},
     volume = {13},
     number = {4},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1968_13_4_a6/}
}