@article{FerreinSteinbauer2017,
  author    = {Alexander Ferrein and Gerald Steinbauer},
  title     = {Looking back on 20 Years of RoboCup},
  journal   = {KI - K{\"u}nstliche Intelligenz},
  volume    = {30},
  number    = {3-4},
  pages     = {321 -- 323},
  doi       = {10.1007/s13218-016-0443-y},
  year      = {2017},
}