@article{AM2_1993__45_2-3_137526,
     author = {B.R. Ebanks and J.K. Chung and P.K. Sahoo},
     title = {On a functional equation of {Swiatak} on groups.},
     journal = {Aequationes mathematicae},
     pages = {246--266},
     publisher = {mathdoc},
     volume = {45},
     number = {2-3},
     year = {1993},
     zbl = {0782.39008},
     url = {http://geodesic.mathdoc.fr/item/AM2_1993__45_2-3_137526/}
}