TY - RPRT TI - Gradient-free MCMC methods for dynamic causal modelling AU - Sengupta, Biswa AU - Friston, Karl J. AU - Penny, Will D. PY - 2015 DO - 10.1016/j.neuroimage.2015.03.008 UR - https://www.osti.gov/biblio/1241923 ID - 1241923 ER -