TSOLOV, A. Precise Generators Synchronization a Small HPP with an Excitation System. Engineering, Technology & Applied Science Research, Greece, v. 8, n. 2, p. 2839–2846, 2018. DOI: 10.48084/etasr.1978. Disponível em: https://etasr.com/index.php/ETASR/article/view/1978. Acesso em: 16 jan. 2022.