@article{DM_2005_17_4_a8,
     author = {M. L. Buryakov and O. A. Logachev},
     title = {On the affinity level of {Boolean} functions},
     journal = {Diskretnaya Matematika},
     pages = {98--107},
     year = {2005},
     volume = {17},
     number = {4},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2005_17_4_a8/}
}