BibTeX Reference for “PICSRules 1.1 Specification”

@TechReport{4790020,
  author      = "",
  title       = "{PICSRules} 1.1 Specification",
  month       = dec,
  note        = "https://www.w3.org/TR/REC-PICSRules-971222",
  year        = "1997",
  bibsource   = "https://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Recommendation",
  institution = "W3C",
}