@article{GDZPPN002032910,
title = {On D'Alembert's functional equation on a Abelian group.},
journal = {Aequationes mathematicae},
volume = {22},
year = {1981},
pages = {54-55},
language = {en},
url = {http://dml.mathdoc.fr/item/GDZPPN002032910}
}
Ljubenova, E.T. On D'Alembert's functional equation on a Abelian group.. Aequationes mathematicae, Tome 22 (1981) pp. 54-55. http://gdmltest.u-ga.fr/item/GDZPPN002032910/