TY - JOUR AU - Kannappan, PL. AU - Sahoo, P. K. TI - On a functional equation connected to sum form nonadditive information measures on an open domain. I. JO - Kybernetika PY - 1986 SP - 268 EP - 275 VL - 22 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/KYB_1986__22_3_a5/ LA - en ID - KYB_1986__22_3_a5 ER -