@article{KYB_1966__2_5_a2,
     author = {Baladov\'a, Libu\v{s}e},
     title = {Minimum of average conditional entropy for given minimum probability of error},
     journal = {Kybernetika},
     pages = {--422},
     publisher = {mathdoc},
     volume = {02},
     number = {5},
     year = {1966},
     mrnumber = {0215641},
     zbl = {0199.21502},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1966__2_5_a2/}
}