Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{MZ_1968__104_170952, author = {Hiroshi Haruki}, title = {On {Parallelogram} {Functional} {Equations.}}, journal = {Mathematische Zeitschrift}, pages = {358--363}, publisher = {mathdoc}, volume = {104}, year = {1968}, zbl = {0153.45803}, url = {http://geodesic.mathdoc.fr/item/MZ_1968__104_170952/} }
Hiroshi Haruki. On Parallelogram Functional Equations.. Mathematische Zeitschrift, Tome 104 (1968), pp. 358-363. http://geodesic.mathdoc.fr/item/MZ_1968__104_170952/