@article{KYB_1986__22_3_a5,
     author = {Kannappan, PL. and Sahoo, P. K.},
     title = {On a functional equation connected to sum form nonadditive information measures on an open domain. {I.}},
     journal = {Kybernetika},
     pages = {268--275},
     publisher = {mathdoc},
     volume = {22},
     number = {3},
     year = {1986},
     mrnumber = {852326},
     zbl = {0609.39005},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1986__22_3_a5/}
}