Prieto-Araujo, E.; Junyent-Ferre, A.; Lavernia-Ferrer, D.; Gomis-Bellmunt, O. "Decentralized control of a nine-phase permanent magnet generator for offshore wind turbines" IEEE Transactions on Energy Conversion 30, 3, pp. 1103 - 1112. 2015 DOI: 10.1109/TEC.2015.2412550