RETRACTION: Research on Direct Drive Technology of the Permanent Magnet Synchronous Motor for Urban Rail Vehicles

Mathematical Problems in Engineering

Mathematical Problems in Engineering, 2026, vol. 2026, 1-1

Date: 2026
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlmpe:9813705

DOI: 10.1155/mpe/9813705

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