@article{CMUC_1993__34_1_a14,
     author = {Swartz, Charles},
     title = {A uniform boundedness principle of {Pt\'ak}},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {149--151},
     publisher = {mathdoc},
     volume = {34},
     number = {1},
     year = {1993},
     mrnumber = {1240212},
     zbl = {0799.46008},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1993__34_1_a14/}
}