@TechReport{	  Griebel.Oswald:1993,
  author	= {M. Griebel and P. Oswald},
  title		= {Remarks on the theory of additive and multiplicative
		  {Schwarz} algorithms},
  type		= {{SFB report 342/6/93A}},
  institution	= {Institut f\"{u}r Informatik, TU M\"{u}nchen},
  annote	= {report},
  year		= {1993},
  ps		= {http://wissrech.ins.uni-bonn.de/research/pub/griebel/poswald3GS.ps.gz}
		  
}