@article{AL_1972_11_5_a6,
     author = {I. A. Mal'tsev},
     title = {Certain properties of cellular subalgebras of {Post} algebras and of},
     journal = {Algebra i logika},
     pages = {571--587},
     publisher = {mathdoc},
     volume = {11},
     number = {5},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1972_11_5_a6/}
}