@Article{	  bradix96jlp2,
  author	= {Stefan Brass and J\"{u}rgen Dix},
  title		= {Semantics of ({D}isjunctive) {L}ogic {P}rograms {B}ased on
		  {P}artial {E}valuation},
  journal	= {Journal of Logic Programming},
  year		= {1999},
  volume	= {38(3)},
  pages		= {167--213},
  note		= "(Extended abstract appeared in: 
                    \newblock {\em Proceedings of the 12-th
		  International Logic Programming Conference, Tokyo\/}, pages
		  199--213, 1995. MIT Press.)"
}