@article{CMUC_1966_7_4_a6,
     author = {Kr\'al, Josef},
     title = {On the {Neumann} problem in potential theory  {(Preliminary} communication)},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {485--493},
     year = {1966},
     volume = {7},
     number = {4},
     mrnumber = {0209502},
     zbl = {0148.09802},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1966_7_4_a6/}
}