New methods to improve convergence of sine fitting algorithms. - Manuel Fonseca da Silva; A. Cruz Serra (Comput. Stand. Interfaces, 2003)

Analog-to-digital converter testing - new proposals. - A. Cruz Serra; F. Corrêa Alegria; Raul Carneiro Martins; Manuel Fonseca da Silva (Comput. Stand. Interfaces, 2004)

Combined spectral and histogram analysis for fast ADC testing. - António Manuel da Cruz Serra; Manuel Fonseca da Silva; Pedro M. Ramos; Raul Carneiro Martins; Linus Michaeli; Ján Saliga (IEEE Trans. Instrum. Meas., 2005)

Simulation and experimental results of multiharmonic least-squares fitting algorithms applied to periodic signals. - Pedro M. Ramos; Manuel Fonseca da Silva; Raul Carneiro Martins; António Manuel da Cruz Serra (IEEE Trans. Instrum. Meas., 2006)