@article{DAN_1963_150_3_a6,
     author = {A. Markov},
     title = {On the inversion complexity of a system of {Boolean} functions},
     journal = {Doklady Akademii Nauk},
     pages = {477--479},
     publisher = {mathdoc},
     volume = {150},
     number = {3},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1963_150_3_a6/}
}