P. Sonneveld

Multigrid and conjugate gradient methods as convergence acceleration techniques

P. M. deZeeuw, P. Wesseling, P. Wesseling, 1985 .

Report A2 'Optical properties, harmonization of testing methods in use by the participating laboratories'

D. Waaijenberg, J.J.G. Breuer, P. Sonneveld, 1998 .

Numerical experiments with a multiple grid and a preconditioned Lanczos type method

P. Wesseling, P. Sonneveld, P. Sonneveld, 1980 .

Multigrid and conjugate gradient accelerations of basic iterative methods

K. W. Morton, M. J. Baines, P. Wesseling, 1986 .

Errors in cubic spline interpolation

P. Sonneveld, 1969 .