@Book{27201088X,
author="Oertel, Klaus-Dieter
and St{\"u}ben, Klaus",
title="Multigrid with ILU-smoothing: systemat. tests and improvements",
series="Arbeitspapiere der GMD 306",
year="1988",
publisher="Gesellschaft f{\"u}r Mathematik und Datenverarbeitung mbH",
address="Sankt Augustin",
note="Klaus-Dieter Oertel; Klaus St{\"u}ben",
language="Undetermined language"
}