@article{MT_2001_4_2_a5,
     author = {A. V. Kravchenko},
     title = {Complexity of {Quasivariety} {Lattices} for {Varieties} of {Unary} {Algebras}},
     journal = {Matemati\v{c}eskie trudy},
     pages = {113--127},
     publisher = {mathdoc},
     volume = {4},
     number = {2},
     year = {2001},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_2001_4_2_a5/}
}