@InProceedings{	  dixsch99,
  author	= "Dix, J{\"{u}}rgen and Schlechta, Karl",
  title		= "Explaining {U}pdates by minimal Sums",
  year		= "1999",
  editor	= "C. Pandu Rangan, V. Ramam, R. Ramanujan",
  booktitle	= "19 th Conference on Foundations of Software Technology and
		  Theoretical Computer Science",
  pages		= "142--154",
  publisher	= "Springer",
  address	= {Berlin},
  series	= "LNCS 1738",
  number	= ""
}