@article{VMUMM_1998_2_a16,
     author = {K. A. Zykov},
     title = {On realization complexity of linear {Boolean} transformations by schemes of depth $3$},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {68--70},
     year = {1998},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1998_2_a16/}
}