@TechReport{	  Griebel:1990,
  author	= {M.~Griebel},
  title		= {Zur {L}\"osung von {F}inite-{D}ifferenzen- und
		  {F}inite-{E}lement-{G}leichungen mittels der
		  {H}ierarchischen {T}ransformations-{M}ehrgitter-{M}ethode},
  institution	= { SFB Bericht 342/4/90 A, Institut f\"{u}r Informatik, TU
		  M\"{u}nchen},
  year		= {1990},
  annote	= {report}
}