@article{PDMA_2019_12_a34,
     author = {N. V. Medvedeva and S. S. Titov},
     title = {Geometric model of perfect ciphers with three cipher plaintext values},
     journal = {Prikladnaya Diskretnaya Matematika. Supplement},
     pages = {113--116},
     publisher = {mathdoc},
     number = {12},
     year = {2019},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDMA_2019_12_a34/}
}