Classes generated by monotone symmetric functions in the three-valued logic / A. V. Mikhailovich. // Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika. 2009. ? 1. P. 33-38 [Moscow Univ. Math. Bulletin. Vol. 64, N 1, 2009. P. 34-38].

Closed classes of functions of the three-valued logic whose generating systems consist of monotone symmetric functions taking values in the set \{0,1\} are considered. Criteria for existence of a basis and for existence of a finite basis are obtained for closed classes from the family under consideration.