@article{HoefnerMoeller2006,
  author    = {Peter H{\"o}fner and Bernhard M{\"o}ller},
  title     = {Lazy semiring neighbours and some applications},
  journal   = {Lecture Notes in Computer Science},
  volume    = {4136},
  pages     = {207 -- 221},
  doi       = {10.1007/11828563_14},
  year      = {2006},
}