@INPROCEEDINGS {Sle94,
AUTHOR    = "Sleijpen, G. L. G.",
TITLE     = "Optimal iteration methods for large linear systems of equations",
BOOKTITLE = "Workshop on Aspects of Parallelization 
             regarding Finite Elements and Ocean Modelling",
SERIES    = "Berichte aus dem Fachbereich Physik",
VOLUME    = "52",
EDITOR    = "Hiller, W. and Krausse, E.",
PUBLISHER = "Alfred Wegener Inst.", 
ADDRESS   = "Bremerhaven",
YEAR      =  1994,}