@article{GDZPPN002039265, title = {On Jensen's functional equation. (Summary).}, journal = {Aequationes mathematicae}, volume = {44}, year = {1992}, pages = {115-115}, url = {http://dml.mathdoc.fr/item/GDZPPN002039265} }
Vasudeva, H.L.; Parnami, J.C. On Jensen's functional equation. (Summary).. Aequationes mathematicae, Tome 44 (1992) p. 115. http://gdmltest.u-ga.fr/item/GDZPPN002039265/