@article{AM2_1972__8_136285,
     author = {Donald Girod},
     title = {On the {Functional} {Equation} ... . {(Short} {Communications).}},
     journal = {Aequationes mathematicae},
     pages = {197--197},
     publisher = {mathdoc},
     volume = {8},
     year = {1972},
     url = {http://geodesic.mathdoc.fr/item/AM2_1972__8_136285/}
}