@article{MT_2003_6_1_a7,
     author = {M. N. Shmatkov},
     title = {The~Number of {Nonequivalent} {Cyclic} {Coverings} over {a~Seifert} {Fiber} {Space}},
     journal = {Matemati\v{c}eskie trudy},
     pages = {182--201},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {2003},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MT_2003_6_1_a7/}
}