@article{10_4153_CJM_1983_049_1,
     author = {Kannappan, Pl. and Ng, C. T.},
     title = {On a {Generalized} {Fundamental} {Equation} of {Information}},
     journal = {Canadian journal of mathematics},
     pages = {862--872},
     year = {1983},
     volume = {35},
     number = {5},
     doi = {10.4153/CJM-1983-049-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1983-049-1/}
}