@article{GDZPPN002025418, title = {A Remark on the Functional Equation ... (xi) = ....}, journal = {Aequationes mathematicae}, volume = {7}, year = {1971}, pages = {241-242}, zbl = {0222.39005}, url = {http://dml.mathdoc.fr/item/GDZPPN002025418} }
PFANZAGL, J.; LAUBE, G. A Remark on the Functional Equation ... (xi) = ..... Aequationes mathematicae, Tome 7 (1971) pp. 241-242. http://gdmltest.u-ga.fr/item/GDZPPN002025418/