@article{VMUMM_1987_4_a21,
     author = {A. B. Ugol'nikov},
     title = {The complexity of realization of {Boolean} functions by schemes in a basis of median and implication},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {76--78},
     publisher = {mathdoc},
     number = {4},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1987_4_a21/}
}