He, J. ., Zhang, D. ., Sheng, X. ., Li, S. ., & Zhu, X. . (2015). Invariant Surface EMG Feature Against Varying Contraction Level for Myoelectric Control Based on Muscle Coordination. IEEE Journal of Biomedical and Health Informatics, 19. https://doi.org/https://doi.org/10.1109/JBHI.2014.2330356 (Original work published 2015)