A fast, high-order solver for the Grad-Shafranov equation. - Andras Pataki; Antoine J. Cerfon; Jeffrey P. Freidberg; Leslie Greengard; Michael O'Neil (J. Comput. Phys., 2013)

Accurate derivative evaluation for any Grad-Shafranov solver. - Lee F. Ricketson; Antoine J. Cerfon; Manas Rachh; Jeffrey P. Freidberg (J. Comput. Phys., 2016)