Reference for “SPARQL 1.1 Protocol for RDF”

@TechReport{Feigenbaum:09:SPR,
  author      = "Lee Feigenbaum and Simon Johnston",
  title       = "{SPARQL} 1.1 Protocol for {RDF}",
  month       = oct,
  note        = "http://www.w3.org/TR/2009/WD-sparql11-protocol-20091022/",
  year        = "2009",
  bibsource   = "http://w2.syronex.com/jmr/w3c-biblio",
  type        = "{W3C} Working Draft",
  institution = "W3C",
}