@Article{	Bachmayr.Cohen.Dahmen,
  author	= {Bachmayr, Markus and Cohen, Albert and Dahmen, Wolfgang},
  title		= {Parametric {PDE}s: {S}parse or low-rank approximations?},
  eprint	= {1607.04444},
  journal	= {IMA Journal of Numerical Analysis},
  annote	= {journal},
  year		= {2017},
  doi		= {10.1093/imanum/drx052},
  note 		= {To appear}
}