@article{GBGI-FI,
  author    = {Barbara Dunin-Keplicz and
               Linh Anh Nguyen and
               Andrzej Szalas},
  title     = {A Framework for Graded Beliefs, Goals and Intentions},
  journal   = {Fundam. Inform.},
  volume    = {100},
  number    = {1-4},
  year      = {2010},
  pages     = {53-76}
}