@article{VMUMM_2008_2_a9,
     author = {S. B. Gashkov and Ya. V. Vegner},
     title = {Complexity of implementation of {Boolean} functions by real formulas},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {47--49},
     publisher = {mathdoc},
     number = {2},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2008_2_a9/}
}