@misc{PMFA_1991_36_1_a7,
     title = {Nov\'e knihy},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {61--64},
     year = {1991},
     volume = {36},
     number = {1},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1991_36_1_a7/}
}