@article{SteinbauerFerrein2017,
  author    = {Gerald Steinbauer and Alexander Ferrein},
  title     = {20 Years of RoboCup},
  journal   = {KI - K{\"u}nstliche Intelligenz},
  volume    = {30},
  number    = {3-4},
  pages     = {221 -- 224},
  doi       = {10.1007/s13218-016-0442-z},
  year      = {2017},
}