@article{MZM_1995_58_3_a2,
     author = {A. G. Ganyushkin and V. S. Mazorchuk},
     title = {Structure of subsemigroups of factor-powers of finite symmetric groups},
     journal = {Matemati\v{c}eskie zametki},
     pages = {341--354},
     year = {1995},
     volume = {58},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1995_58_3_a2/}
}