@article{PDM_2023_4_a2,
     author = {T. A. Bonich and M. A. Panferov and N. N. Tokareva},
     title = {On the number of $\ell$-suitable {Boolean} functions in constructions of filter and combining models of stream ciphers},
     journal = {Prikladna\^a diskretna\^a matematika},
     pages = {21--28},
     publisher = {mathdoc},
     number = {4},
     year = {2023},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PDM_2023_4_a2/}
}