E-connections of Abstract Description Systems.

Oliver Kutz, Carsten Lutz, Frank Wolter, and Michael Zakharyaschev 

@Article{KuLuWoZa-AI-03,
  author =       {O. Kutz and C. Lutz and F. Wolter and M. Zakharyaschev},
  title =        {E-Connections of Abstract Description Systems},
  journal =      {Artificial Intelligence},
  year =         {2004},
  Volume = {156},
  Number = {1},
  Pages = {1--73}
}