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Vik. S. Kulikov, “Polugruppy razlozhenii na mnozhiteli i neprivodimye komponenty prostranstva Gurvitsa. II”, Izv. RAN. Ser. matem., 76:2 (2012), 151–160; Vik. S. Kulikov, “Factorization semigroups and irreducible components of the Hurwitz space. II”, Izv. Math., 76:2 (2012), 356–364
Vik. S. Kulikov, “Polugruppy razlozhenii na mnozhiteli i neprivodimye komponenty prostranstva Gurvitsa”, Izv. RAN. Ser. matem., 75:4 (2011), 49–90; Vik. S. Kulikov, “Factorization semigroups and irreducible components of the Hurwitz space”, Izv. Math., 75:4 (2011), 711–748
