@article{AL_1984_23_1_a4,
     author = {S. S. Marchenkov},
     title = {On the existence of finite bases in closed classes of},
     journal = {Algebra i logika},
     pages = {88--99},
     publisher = {mathdoc},
     volume = {23},
     number = {1},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1984_23_1_a4/}
}