Clarendon Press
K.W. Morton , M.J. Baines
Boundary-value problems, multigrid and defect correction

Hemker, P., & Koren, B. (1988). Multigrid, defect correction and upwind schemes for the steady Navier-Stokes equations. In K. W. Morton & M. J. Baines (Eds.), Numerical methods for fluid dynamics III (pp. 175–196). Clarendon Press.