Voir la notice de l'article provenant de la source Math-Net.Ru
@article{PDMA_2013_6_a21, author = {N. V. Medvedeva and S. S. Titov}, title = {On non-minimal perfect ciphers}, journal = {Prikladnaya Diskretnaya Matematika. Supplement}, pages = {42--44}, publisher = {mathdoc}, number = {6}, year = {2013}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/PDMA_2013_6_a21/} }
N. V. Medvedeva; S. S. Titov. On non-minimal perfect ciphers. Prikladnaya Diskretnaya Matematika. Supplement, no. 6 (2013), pp. 42-44. http://geodesic.mathdoc.fr/item/PDMA_2013_6_a21/