@article{Moeller2008,
  author    = {Bernhard M{\"o}ller},
  title     = {Knowledge and games in modal semirings},
  journal   = {Lecture Notes in Computer Science},
  volume    = {4988},
  pages     = {320 -- 336},
  doi       = {10.1007/978-3-540-78913-0_24},
  year      = {2008},
}