@Article{	  Bungartz.Griebel.Roschke.ea:1994*1,
  author	= {H.-J. Bungartz and M. Griebel and D. R\"oschke and C.
		  Zenger},
  title		= {Pointwise convergence of the combination technique for the
		  {L}aplace equation},
  journal	= {East-West J. Numer. Math.},
  volume	= {2},
  pages		= {21--45},
  annote	= {article},
  note		= {also as SFB-Bericht 342/16/93A, Institut f\"ur Informatik,
		  TU M\"unchen, 1993},
  year		= {1994},
  ps		= {http://wissrech.ins.uni-bonn.de/research/pub/griebel/neu.ps.gz}
		  ,
  url		= {http://wissrech.ins.uni-bonn.de/research/pub/griebel/sfb16_93.ps.gz}
		  
}