@book{steiner-ga227-de,
  author = {Steiner, Rudolf},
  title = {Initiations-Erkenntnis},
  series = {Rudolf Steiner Gesamtausgabe},
  number = {227},
  edition = {5},
  publisher = {Rudolf Steiner Verlag},
  address = {Basel},
  year = {2023},
  pagetotal = {396},
  isbn = {978-3-7274-2271-3},
  language = {german},
}

@book{steiner-ga227-en-rsp1966,
  author = {Steiner, Rudolf},
  title = {The Evolution of Consciousness},
  publisher = {Rudolf Steiner Press},
  year = {1966},
  language = {english},
  note = {GA 227; edition code RSP1966},
}

@online{anthroposophyai-ga227,
  author = {Steiner, Rudolf},
  title = {Initiations-Erkenntnis (GA 227), as served by anthroposophy.ai},
  url = {https://anthroposophy.ai/contents/227/},
  urldate = {2026-10-21},
  organization = {anthroposophy.ai},
  note = {Rudolf Steiner, Initiations-Erkenntnis (GA 227), as served by anthroposophy.ai, https://anthroposophy.ai/ga/227/, register entry https://anthroposophy.ai/contents/227/, status as of 2026-10-21: German served; English editions RSP1966.},
}