@techreport{Moeller2007,
  author    = {Bernhard M{\"o}ller},
  title     = {Knowledge and games in modal semirings},
  institution = {Fakult{\"a}t f{\"u}r Angewandte Informatik},
  series    = {Reports / Technische Berichte der Fakult{\"a}t f{\"u}r Angewandte Informatik der Universit{\"a}t Augsburg},
  number    = {2007-03},
  year      = {2007},
}