{
  "number": 491,
  "title": "What is \"Free\"?",
  "authors": [
    "M.A. Padlipsky"
  ],
  "published": "1973-04",
  "status": "Unknown",
  "stream": "Legacy",
  "pages": 2,
  "formats": [
    "TXT",
    "HTML"
  ],
  "doi": "10.17487/RFC491",
  "urls": {
    "html": "https://rfc.dk/rfc491/",
    "text": "https://rfc.dk/rfc491.txt",
    "rfc_editor": "https://www.rfc-editor.org/rfc/rfc491",
    "datatracker": "https://datatracker.ietf.org/doc/rfc491/"
  },
  "text_modified": "2001-06-11T21:46:05Z"
}