@article{DBLP:journals/amai/GrecoL12,
  title = "Preface",
  author = "Sergio Greco and Thomas Lukasiewicz",
  year = "2012",
  journal = "Annals of Mathematics and Artificial Intelligence",
  number = "2-3",
  pages = "109-111",
  url = "http://dx.doi.org/10.1007/s10472-012-9284-z",
  volume = "64",
}