@article{MZM_1985_38_5_a13,
     author = {V. V. Gorlov},
     title = {Congruences in closed classes in a $k$-valued logic, defined by predicates},
     journal = {Matemati\v{c}eskie zametki},
     pages = {756--763},
     publisher = {mathdoc},
     volume = {38},
     number = {5},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1985_38_5_a13/}
}