@article{GDZPPN002549921, title = {An initial value problem for a functiona equation.}, journal = {Aequationes mathematicae}, volume = {20}, year = {1980}, pages = {90-96}, zbl = {0428.39004}, url = {http://dml.mathdoc.fr/item/GDZPPN002549921} }
Bedingfield, Neil Kenneth. An initial value problem for a functiona equation.. Aequationes mathematicae, Tome 20 (1980) pp. 90-96. http://gdmltest.u-ga.fr/item/GDZPPN002549921/