Sara, Russo, Arnaldo Batista, Filipa Esgalhado, Catarina Palma R. dos Reis, Fátima Serrano, Valentina Vassilenko, and Manuel Ortigueira. "Alvarez waves in pregnancy: a comprehensive review." Biophysical Reviews. 1 (2021): 12.
Rato, R. T., M. D. Ortigueira, and AG Batista. "The EMD and its Use to Identify System Modes." Proceedings of the International Workshop on New Trends in Science and Technology. 2008.
Pinto, I., L. B. Alves, M. D. Ortigueira, and Batista A.G. "ECG Wave Detection and Delineation with Wavelets." Computational Intelligence in Medicine and Healthcare Conference . Biopattern, 2005.