@article{KYB_1979__15_1_a2,
     author = {Kannappan, PL. and Rathie, P. N.},
     title = {Generalization of sum representation functional equations. {II:} {Generalized} directed divergence},
     journal = {Kybernetika},
     pages = {--39},
     publisher = {mathdoc},
     volume = {15},
     number = {1},
     year = {1979},
     mrnumber = {529889},
     zbl = {0468.39007},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1979__15_1_a2/}
}