@article{PDMA_2013_6_a19,
     author = {A. M. Koreneva},
     title = {Block ciphers based on two feedback shift registers},
     journal = {Prikladnaya Diskretnaya Matematika. Supplement},
     pages = {39--41},
     publisher = {mathdoc},
     number = {6},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDMA_2013_6_a19/}
}