@article{VMUMM_2018_6_a10,
     author = {D. N. Babin},
     title = {Precomplete classes of automata with the superposition operation},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {73--74},
     publisher = {mathdoc},
     number = {6},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2018_6_a10/}
}