@TechReport{BaSat98,
  author = 	 {Baader, F. and Sattler, U.},
  title = 	 {Description Logics with Aggregates and Concrete Domains, Part II (extended)},
  institution =  {LuFg Theoretical Computer Science, RWTH Aachen, Germany},
  year = 	 1998,
  type        = {LTCS-Report},
  number =	 {LTCS-98-02}
}