@article{10_4064_sm_28_3_245_251,
     author = {Edwin Wagner},
     title = {Continuity of operator functions},
     journal = {Studia Mathematica},
     pages = {245--251},
     publisher = {mathdoc},
     volume = {28},
     number = {3},
     year = {1966},
     doi = {10.4064/sm-28-3-245-251},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-28-3-245-251/}
}