The rate of convergence of Toeplitz based PCG methods for second order nonlinear boundary value problems

@article{Capizzano1999TheRO,
  title={The rate of convergence of Toeplitz based PCG methods for second order nonlinear boundary value problems},
  author={Stefano Serra Capizzano},
  journal={Numerische Mathematik},
  year={1999},
  volume={81},
  pages={461-495}
}