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Translated from Matematicheskie Zametki, Vol. 53, No. 1, pp. 95–103, January, 1993.
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Puninskii, G.E. RD-formulas and W-rings. Math Notes 53, 66–71 (1993). https://doi.org/10.1007/BF01208525
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DOI: https://doi.org/10.1007/BF01208525