@article{AM2_1991__42_3_137432,
     author = {Gy. Szab\'o},
     title = {A characterization of generalized inner product spaces (?-orthogonally additive mappings, {III).}},
     journal = {Aequationes mathematicae},
     pages = {225--238},
     publisher = {mathdoc},
     volume = {42},
     number = {3},
     year = {1991},
     url = {http://geodesic.mathdoc.fr/item/AM2_1991__42_3_137432/}
}