Preconditioned conjugate gradient methods. Proceedings of a conference held in Nijmegen, The Netherlands, June 19-21, 1989
The articles of this volume will be reviewed individually under the abbreviation ``Preconditioned conjugate gradient methods, Proc. Conf., Nijmegen/Neth. 1989, Lect. Notes Math. 1457 (1990)''.
scientific article; zbMATH DE number 48413