@article{PMFA_1974__19_5_a2,
     author = {Pe{\l}czy\'nski, A.},
     title = {O n\v{e}kter\'ych {Banachov\'ych} probl\'emech},
     journal = {Pokroky matematiky, fyziky a astronomie},
     pages = {262--270},
     publisher = {mathdoc},
     volume = {19},
     number = {5},
     year = {1974},
     mrnumber = {0487405},
     zbl = {0295.46030},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/item/PMFA_1974__19_5_a2/}
}