@article{IIGUM_2017_22_a1,
     author = {A. S. Baliuk and A. S. Zinchenko},
     title = {Lower bound of the complexity of seven-valued functions in the class of polarized polynomials},
     journal = {The Bulletin of Irkutsk State University. Series Mathematics},
     pages = {18--30},
     publisher = {mathdoc},
     volume = {22},
     year = {2017},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIGUM_2017_22_a1/}
}