@Article{	  Harbrecht.Peters.Siebenmorgen:2013*1,
  year		= {2013},
  journal	= {Sparse Grids and Applications},
  volume	= {88},
  series	= {Lecture Notes in Computational Science and Engineering},
  editor	= {Garcke, J. and Griebel, M.},
  doi		= {10.1007/978-3-642-31703-3_8},
  title		= {On Multilevel Quadrature for Elliptic Stochastic Partial
		  Differential Equations},
  publisher	= {Springer},
  address	= {Berlin-Heidelberg},
  author	= {Harbrecht, H. and Peters, M. and Siebenmorgen, M.},
  pages		= {161-179}
}