Oliveira, L. B., J. R. Fernandes, I. M. Filanovsky, C. J. M. Verhoeven, and M. M. Silva. "Transceiver Architectures and RF Blocks." Analysis and Design of Quadrature Oscillators (2008): 7-35. Abstract
Oliveira, L. B., J. R. Fernandes, I. M. Filanovsky, C. J. M. Verhoeven, and M. M. Silva. "Quadrature Relaxation Oscillator." Analysis and Design of Quadrature Oscillators (2008): 37-61. Abstract
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Oliveira, L. B., J. R. Fernandes, M. H. L. Kouwenhoven, C. van den Bos, and C. J. M. Verhoeven. "A quadrature relaxation oscillator-mixer in CMOS." Circuits and Systems, 2003. ISCAS'03. Proceedings of the 2003 International Symposium on. Vol. 1. IEEE, 2003. I–689. Abstract
Oliveira, L. B., J. R. Fernandes, I. M. Filanovsky, C. J. M. Verhoeven, and M. M. Silva. "Conclusions and Future Research." Analysis and Design of Quadrature Oscillators (2008): 137-140. Abstract
Oliveira, L. B., J. R. Fernandes, I. M. Filanovsky, C. J. M. Verhoeven, and M. M. Silva. "Measurement Results." Analysis and Design of Quadrature Oscillators (2008): 119-135. Abstract