@Article{	  Chinnamsetty.Hackbusch.Flad:2010,
  author	= {Chinnamsetty, Sambasiva Rao and Hackbusch, Wolfgang and
		  Flad, Heinz-J\"{u}rgen},
  title		= {{Efficient multi-scale computation of products of orbitals
		  in electronic structure calculations}},
  doi		= {10.1007/s00791-011-0153-9},
  journal	= {Computing and visualization in science},
  pages		= {397--408},
  year		= {2010},
  volume	= {13},
  number	= {8},
  issn		= {1432-9360},
  institution	= {{Max Planck Institute for Mathematics in the Sciences}},
  mispreprint	= {{MIS-Preprint 71/2009}},
  url		= {http://www.mis.mpg.de/de/publications/preprints/2009/prepr2009-71.html}
		  
}