MOHITE, M. Y.; CHOI, Y. Design Techniques for Ultra-Low Power Ring Oscillators: A Comparative Survey. Journal of Electronics and Electrical Engineering, Singapore, v. 4, n. 2, p. 674–690, 2025. DOI: 10.37256/jeee.4220257355. Disponível em: https://ojs.wiserpub.com/index.php/JEEE/article/view/7355. Acesso em: 9 jan. 2026.