@article{M2AN_1972__6_3_85_0,
     author = {Bhu Dev Sharma and Ram Autar},
     title = {Generalized functional equation of two variables in information theory},
     journal = {Revue fran\c{c}aise d'automatique informatique recherche op\'erationnelle. Math\'ematique},
     pages = {85--98},
     publisher = {Dunod},
     address = {Paris},
     volume = {6},
     number = {R3},
     year = {1972},
     mrnumber = {360004},
     zbl = {0264.39006},
     language = {en},
     url = {http://www.numdam.org/item/M2AN_1972__6_3_85_0/}
}