García Romero, D., Martínez, P., Calvo, B. and Medrano, N. 2023. Hertz-Resolution Analog Quadrature Sine Oscillator. Application to Portable Lock-In Amplifiers. Jornada de Jóvenes Investigadores del I3A. 3, (Feb. 2023), 52–53. DOI:https://doi.org/10.26754/jji-i3a.201501641.