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References
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Manakov S.V., ZhETF, 67:2 (1974), 543–545   |
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Krichever I.M., UMN, 32:6 (1977), 183–208   |
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Zhernakov N.V., Ukr. mat. zhurn., 39:5 (1988), 645–648 |
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Berezanskii Yu.M., DAN SSSR, 281:1 (1985), 16–19 |
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Berezanskii Yu.M., Gekhtman M.I., Shmoish M.E., Ukr. mat. zhurn., 38:1 (1986), 84–89 |
