@article{Moeller2006,
  author    = {Bernhard M{\"o}ller},
  title     = {Guest editor's introduction: Special issue on Relation Algebra and Kleene Algebra},
  journal   = {The Journal of Logic and Algebraic Programming},
  volume    = {66},
  number    = {2},
  pages     = {69 -- 70},
  doi       = {10.1016/j.jlap.2005.04.009},
  year      = {2006},
}