@article{KYB_1965_1_4_a0,
     author = {Perez, Albert},
     title = {Information, $\varepsilon$-sufficiency and data reduction problems},
     journal = {Kybernetika},
     pages = {297--323},
     year = {1965},
     volume = {1},
     number = {4},
     mrnumber = {0205410},
     zbl = {0156.40603},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1965_1_4_a0/}
}