@article{MASLO_1976_26_1_a5,
     author = {Himmelberg, Charles J. and Van Vleck, F. S.},
     title = {An extension of {Brunovsk\'y's} {Scorza-Dragoni} type theorem for unbounded set-valued functions},
     journal = {Mathematica slovaca},
     pages = {47--52},
     year = {1976},
     volume = {26},
     number = {1},
     mrnumber = {0430205},
     zbl = {0328.28004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/MASLO_1976_26_1_a5/}
}