@article{DM_2004_16_4_a2,
     author = {N. P. Red'kin},
     title = {On the complexity of {Boolean} functions with a small number of ones},
     journal = {Diskretnaya Matematika},
     pages = {20--31},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DM_2004_16_4_a2/}
}