VANNAI , Nándor; PAP , László. RC OSCILLATOR WITH EXTREMELY LOW HARMONIC DISTORTION Periodica Polytechnica Electrical Engineering, [S. l.], v. 24, n. 1-2, p. 59–65, 1980. Disponível em: https://pp.bme.hu/ee/article/view/4796. Acesso em: 3 jul. 2025.