@article{PMFA_1978_23_4_a1,
     author = {Knuth, Donald E.},
     title = {Nadre\'aln\'a \v{c}{\'\i}sla {[Pokra\v{c}ov\'an{\'\i}]}},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {187--196},
     year = {1978},
     volume = {23},
     number = {4},
     zbl = {0393.00024},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1978_23_4_a1/}
}