V.  Catambrone, Greco, A., Averta, G., Bianchi, M., Bicchi, A., Scilingo, E. P., and Valenza, G., ?EEG Complexity Maps to Characterise Brain Dynamics during Upper Limb Motor Imagery?, in  Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS, 2018 [Online]. Available:  https://ieeexplore.ieee.org/document/8512912