JALIL, J.; REAZ, M. B. I.; ALI, M. A. M.; CHANG, T. G. A Low Power 3-Stage Voltage-Controlled Ring Oscillator in 0.18 µm CMOS Process for Active RFID Transponder. Elektronika ir Elektrotechnika, [S. l.], v. 19, n. 8, p. 69-72, 2013. DOI: 10.5755/j01.eee.19.8.2524. Disponível em: https://eejournal.ktu.lt/index.php/elt/article/view/2524. Acesso em: 25 sep. 2022.