@article{AM2_1968__1_135977,
     author = {Halina Swiatak},
     title = {Remarks on the {Functional} {Equation.}},
     journal = {Aequationes mathematicae},
     pages = {239--241},
     publisher = {mathdoc},
     volume = {1},
     year = {1968},
     zbl = {0165.17202},
     url = {http://geodesic.mathdoc.fr/item/AM2_1968__1_135977/}
}