@article{PMFA_1981__26_6_a1,
     author = {Bauer, Heinz},
     title = {Aproximace a abstraktn{\'\i} hranice},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {305--326},
     publisher = {mathdoc},
     volume = {26},
     number = {6},
     year = {1981},
     mrnumber = {0645302},
     zbl = {0416.41023},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1981__26_6_a1/}
}