@article{VMUMM_2009_2_a15,
     author = {D. V. Truschin},
     title = {Depth of $\alpha$-completions of systems of {Boolean} functions},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {72--75},
     publisher = {mathdoc},
     number = {2},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2009_2_a15/}
}