@article{core_bargset_kernel-rivista,
  title = "On the complexity of core, kernel, and bargaining set",
  author = "Gianluigi Greco and Enrico Malizia and Luigi Palopoli and Francesco Scarcello",
  year = "2011",
  journal = "Artificial Intelligence",
  month = "August",
  number = "12--13",
  pages = "1877--1910",
  url = "http://dx.doi.org/10.1016/j.artint.2011.06.002",
  volume = "175",
}