@Article{	  BeuPillZag12,
  author	= {Beuchler, Sven and Pillwein, Veronika and Zaglmayr, Sabine
		  },
  title		= {Sparsity optimized high order finite element functions for
		  $H(div)$ on simplices},
  journal	= {Numerische Mathematik},
  year		= {2012},
  optkey	= {},
  volume	= {122},
  number	= {2},
  pages		= {197--225},
  optmonth	= {},
  note		= {avaiable online},
  optannote	= {},
  url		= {http://www.springerlink.com/openurl.asp?genre=article&id=doi:10.1007/s00211-012-0461-0}
		  
}