@article{VMUMM_2018_5_a3,
     author = {D. E. Starodubtsev},
     title = {Cardinality of the set of delta-closed classes of functions of {\cyra} multi-valued logic},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {22--28},
     publisher = {mathdoc},
     number = {5},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_2018_5_a3/}
}