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@article{MM2_1986__54_155122, author = {Wolfgang Sander}, title = {On a {Functional} {Equation} {Arising} in {Information} {Theory.}}, journal = {Manuscripta mathematica}, pages = {439--452}, publisher = {mathdoc}, volume = {54}, year = {1986}, zbl = {0588.39006}, url = {http://geodesic.mathdoc.fr/item/MM2_1986__54_155122/} }
Wolfgang Sander. On a Functional Equation Arising in Information Theory.. Manuscripta mathematica, Tome 54 (1986), pp. 439-452. http://geodesic.mathdoc.fr/item/MM2_1986__54_155122/