@article{AM2_1968__1_135951,
     author = {M.A. McKiernan and J. Aczel and H. Haruk},
     title = {General and {Regular} {Solutions} of {Functional} {Equations} {Characterizing} {Harmonic} {Polynomials.} {(Short} {Communication).}},
     journal = {Aequationes mathematicae},
     pages = {194--195},
     publisher = {mathdoc},
     volume = {1},
     year = {1968},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AM2_1968__1_135951/}
}