TY - RPRT TI - Efficient gradient computation for dynamical models AU - Sengupta, B. AU - Friston, K. J. AU - Penny, W. D. PY - 2014 DO - 10.1016/j.neuroimage.2014.04.040 UR - https://www.osti.gov/biblio/1197913 ID - 1197913 ER -