@article{LJM_2001_9_a1,
     author = {V. R. Bairasheva},
     title = {Atoms in the structure of degrees of automata transformations and their monadic theories},
     journal = {Lobachevskii journal of mathematics},
     pages = {7--14},
     publisher = {mathdoc},
     volume = {9},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/LJM_2001_9_a1/}
}