@article{PDM_2014_2_a1,
     author = {D. K. Podolko},
     title = {On one continual set of  $\beta$-closed classes of the multivalued logic functions},
     journal = {Prikladna\^a diskretna\^a matematika},
     pages = {12--20},
     publisher = {mathdoc},
     number = {2},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PDM_2014_2_a1/}
}