@article{MASLO_1988_38_4_a12,
     author = {Stehl{\'\i}kov\'a, Be\'ata},
     title = {On the convergence of operators},
     journal = {Mathematica slovaca},
     pages = {395--401},
     year = {1988},
     volume = {38},
     number = {4},
     mrnumber = {978770},
     zbl = {0663.60001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1988_38_4_a12/}
}