Kiebel, Stefan J. Wellcome Trust Centre for Neuroimaging, University College London, United Kingdom; Department Neurology, MPI for Human Cognitive and Brain Sciences, Max Planck Society;
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2923068/pdf/ukmss-31194.pdf (Postprint)
Chen, C. C., Kilner, J. M., Friston, K. J., Kiebel, S. J., Jolly, R., & Ward, N. (2010). Nonlinear coupling in the human motor system. The Journal of Neuroscience, 30(25), 8393-8399. doi:10.1523/JNEUROSCI.1194-09.2010.