[
 {
  "id": "steiner-ga20-de",
  "type": "book",
  "author": [
   {
    "family": "Steiner",
    "given": "Rudolf"
   }
  ],
  "title": "Vom Menschenrätsel (1916)",
  "publisher": "Rudolf Steiner Verlag",
  "publisher-place": "Basel",
  "ISBN": "978-3-7274-0200-5",
  "edition": "5",
  "collection-title": "Rudolf Steiner Gesamtausgabe",
  "collection-number": "20",
  "language": "de"
 },
 {
  "id": "steiner-ga20-en-mp1990",
  "type": "book",
  "author": [
   {
    "family": "Steiner",
    "given": "Rudolf"
   }
  ],
  "title": "The Riddle of Man (1990)",
  "translator": [
   {
    "literal": "William Lindeman"
   }
  ],
  "publisher": "Mercury Press",
  "publisher-place": "Spring Valley, New York",
  "ISBN": "0-929979-13-3",
  "note": "GA 20; edition code MP1990",
  "number-of-pages": "167",
  "issued": {
   "date-parts": [
    [
     1990
    ]
   ]
  },
  "language": "en"
 },
 {
  "id": "anthroposophyai-ga20",
  "type": "webpage",
  "author": [
   {
    "family": "Steiner",
    "given": "Rudolf"
   }
  ],
  "title": "Vom Menschenrätsel (1916) (GA 20), as served by anthroposophy.ai",
  "URL": "https://anthroposophy.ai/contents/20/",
  "note": "Rudolf Steiner, Vom Menschenrätsel (1916) (GA 20), as served by anthroposophy.ai, https://anthroposophy.ai/ga/20/, register entry https://anthroposophy.ai/contents/20/, status as of 2026-10-21: German served; English editions MP1990.",
  "accessed": {
   "date-parts": [
    [
     2026,
     10,
     21
    ]
   ]
  }
 }
]