@article{DKNS10,
  author    = {Barbara Dunin-Keplicz and
               Linh Anh Nguyen and
               Andrzej Szalas},
  title     = {A layered rule-based architecture for approximate knowledge
               fusion},
  journal   = {Comput. Sci. Inf. Syst.},
  volume    = {7},
  number    = {3},
  year      = {2010},
  pages     = {617-642}
}