@article{KYB_1981__17_3_a3,
     author = {Ebanks, Bruce R.},
     title = {A characterization of separable utility functions},
     journal = {Kybernetika},
     pages = {244--255},
     publisher = {mathdoc},
     volume = {17},
     number = {3},
     year = {1981},
     mrnumber = {628212},
     zbl = {0459.90005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1981__17_3_a3/}
}