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@article{AM2_1986__30_137115, author = {Gy\"orgy Szab\'o}, title = {On mappings, orthogonally additive in the {Birkhoff-James} sense.}, journal = {Aequationes mathematicae}, pages = {93--105}, publisher = {mathdoc}, volume = {30}, year = {1986}, zbl = {0594.39007}, url = {http://geodesic.mathdoc.fr/item/AM2_1986__30_137115/} }
György Szabó. On mappings, orthogonally additive in the Birkhoff-James sense.. Aequationes mathematicae, Tome 30 (1986), pp. 93-105. http://geodesic.mathdoc.fr/item/AM2_1986__30_137115/