@article{PDM_2015_3_a1,
     author = {I. B. Bilyak and O. V. Kamlovskii},
     title = {Frequency characteristics of cycles in output sequences generated by combining generators over the field of two elements},
     journal = {Prikladna\^a diskretna\^a matematika},
     pages = {17--31},
     publisher = {mathdoc},
     number = {3},
     year = {2015},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDM_2015_3_a1/}
}