Carlos, Matos, Batista Arnaldo, and Manuel Ortigueira. "FILTERS: Fractional vs Integer Order." Symposium on Fractional Signals and Systems. 2009.
Carneiro, M., AG Batista, and M. D. OrtigueiraEEG artifact removal with ICA analysis. Doctoral Conference on Computing, Electrical and Industrial Systems, DoCEIS 2011., 2011.
Costa, J. C., M. D. Ortigueira, and AG Batista. "ARMA Modelling of Sleep Spindles." Second IFIP WG 5.5/SOCOLNET Doctoral Conference on Computing, Electrical and Industrial Systems. Doceis, 2011.
Costa, J., Manuel D. Ortigueira, and Arnaldo BatistaARMA Modelling for Sleep Disorders Diagnose. Technological Innovation for the Internet of Things. Portugal: Springer IFIP AICT series, 2013.