@book{steiner-ga98-de,
  author = {Steiner, Rudolf},
  title = {Natur- und Geistwesen – ihr Wirken in unserer sichtbaren Welt},
  series = {Rudolf Steiner Gesamtausgabe},
  number = {98},
  edition = {2},
  publisher = {Rudolf Steiner Verlag},
  address = {Basel},
  year = {1996},
  pagetotal = {282},
  isbn = {978-3-7274-0980-6},
  language = {german},
}

@online{anthroposophyai-ga98,
  author = {Steiner, Rudolf},
  title = {Natur- und Geistwesen – ihr Wirken in unserer sichtbaren Welt (GA 98), as served by anthroposophy.ai},
  url = {https://anthroposophy.ai/contents/98/},
  urldate = {2026-10-21},
  organization = {anthroposophy.ai},
  note = {Rudolf Steiner, Natur- und Geistwesen – ihr Wirken in unserer sichtbaren Welt (GA 98), as served by anthroposophy.ai, https://anthroposophy.ai/ga/98/, register entry https://anthroposophy.ai/contents/98/, status as of 2026-10-21: German served; English editions English.},
}