@article{BragardRichter2015,
  author    = {Michael Bragard and S. A. Richter},
  title     = {LED-Kreisel als Praxis-Booster},
  journal   = {Elektor : electronics worldwide},
  volume    = {39},
  number    = {12},
  pages     = {16},
  year      = {2015},
}