@INCOLLECTION{Polthier/Preuss03Identifying,
  author = 		{Konrad Polthier and Eike Preuss},
  title = 		{Identifying Vector Field Singularities using a Discrete {H}odge Decomposition},
  booktitle = 	  	{Visualization and Mathematics III},
  publisher =	  	{Springer Verlag},
  year =		2003,
  editor =		{Hans-Christian Hege and Konrad Polthier},
  pages=         	{113--134}
}