@article{GDZPPN00203347X, title = {A class of symmetric biadditive functionals.}, journal = {Aequationes mathematicae}, volume = {22}, year = {1981}, pages = {169-174}, zbl = {0515.15008}, url = {http://dml.mathdoc.fr/item/GDZPPN00203347X} }
Fischer, P.; Mokansi, J.P. A class of symmetric biadditive functionals.. Aequationes mathematicae, Tome 22 (1981) pp. 169-174. http://gdmltest.u-ga.fr/item/GDZPPN00203347X/