@article{MVK_2015_6_1_a4,
     author = {F. M. Malyshev},
     title = {The complexity of initial state recovery for a~class of filter generators},
     journal = {Matemati\v{c}eskie voprosy kriptografii},
     pages = {109--116},
     year = {2015},
     volume = {6},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MVK_2015_6_1_a4/}
}