@article{MET_1975__22_175652,
     author = {D.P. Mittal},
     title = {On {Some} {Functional} {Equations} {Concerning} {Entropy,} {Directed} {Divergence} and {Inaccuracy.}},
     journal = {Metrika},
     pages = {35--46},
     publisher = {mathdoc},
     volume = {22},
     year = {1975},
     zbl = {0305.94030},
     url = {http://geodesic.mathdoc.fr/item/MET_1975__22_175652/}
}