XU, Tao. Application and Research of Voltage-Controlled Oscillator in Phase-Locked Loop. Highlights in Science, Engineering and Technology, [S. l.], v. 106, p. 13–21, 2024. DOI: 10.54097/70mg4863. Disponível em: https://drpress.org/ojs/index.php/HSET/article/view/22725. Acesso em: 19 sep. 2026.