@article{TVP_1985_30_4_a16,
     author = {A. M. Kagan},
     title = {An information property of exponential families},
     journal = {Teori\^a vero\^atnostej i ee primeneni\^a},
     pages = {783--786},
     publisher = {mathdoc},
     volume = {30},
     number = {4},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TVP_1985_30_4_a16/}
}