@article{AM2_1968__1_135936,
     author = {Halina Swiatak},
     title = {On the {Regularity} of the {Distributational} and {Continuous} {Solutions} of the {Functional} {Equations} ... .},
     journal = {Aequationes mathematicae},
     pages = {6--19},
     publisher = {mathdoc},
     volume = {1},
     year = {1968},
     zbl = {0177.19804},
     url = {http://geodesic.mathdoc.fr/item/AM2_1968__1_135936/}
}