@article{AL_1991_30_5_a0,
     author = {E. A. Palyutin},
     title = {Elimination of quantifiers in {Horn} theories with a small},
     journal = {Algebra i logika},
     pages = {513--516},
     year = {1991},
     volume = {30},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/AL_1991_30_5_a0/}
}