@article{DelgrandeSchaubTompitsetal.2013,
  author    = {James Delgrande and Torsten H. Schaub and Hans Tompits and Stefan Woltran},
  title     = {A model-theoretic approach to belief change in answer set programming},
  journal   = {ACM transactions on computational logic},
  volume    = {14},
  number    = {2},
  doi       = {10.1145/2480759.2480766},
  year      = {2013},
}