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Found 4 Documents (Results 1–3)

Russ. Math. 61, No. 2, 28-35 (2017); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2017, No. 2, 34-43 (2017).
MSC:  93E03 93C95
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Russ. Math. 58, No. 11, 43-53 (2014); translation from Izv. Vyssh. Uchebn. Zaved., Mat. 2014, No. 11, 50-63 (2014).
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