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Translated from Sibirskii Matematicheskii Zhurnal, Vol. 25, No. 4, pp. 120–142, July–August, 1984.
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Mednykh, A.D. Nonequivalent coverings of Riemann surfaces with a prescribed ramification type. Sib Math J 25, 606–625 (1984). https://doi.org/10.1007/BF00968900
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DOI: https://doi.org/10.1007/BF00968900