Valenza, G; Faes, L; Citi, L; Orini, M; Barbieri, R; (2018) Instantaneous Transfer Entropy for the Study of Cardiovascular and Cardiorespiratory Nonstationary Dynamics. IEEE Transactions on Biomedical Engineering , 65 (5) pp. 1077-1085. 10.1109/TBME.2017.2740259.