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@article{AM2_1971__6_136195, author = {J. PFANZAGL and G. LAUBE}, title = {A {Remark} on the {Functional} {Equation} ... (xi) = ....}, journal = {Aequationes mathematicae}, pages = {241--242}, publisher = {mathdoc}, volume = {6}, year = {1971}, zbl = {0222.39005}, url = {http://geodesic.mathdoc.fr/item/AM2_1971__6_136195/} }
J. PFANZAGL; G. LAUBE. A Remark on the Functional Equation ... (xi) = ..... Aequationes mathematicae, Tome 6 (1971), pp. 241-242. http://geodesic.mathdoc.fr/item/AM2_1971__6_136195/