@article{VMUMM_2001_6_a11,
     author = {O. S. Tarasova},
     title = {Classes of $k$-valued logic that are closed with respect to the extended superposition operation},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {54--57},
     publisher = {mathdoc},
     number = {6},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2001_6_a11/}
}