query: # Conference Series wikidata query
  # see https://confident.dbis.rwth-aachen.de/dblpconf/wikidata
  # WF 2021-01-30
  PREFIX wd: <http://www.wikidata.org/entity/>
  PREFIX wdt: <http://www.wikidata.org/prop/direct/>
  PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
  SELECT ?confSeries ?display_name ?confSeriesLabel ?official_website ?DBLP_pid ?WikiCFP_pid ?GND_pid
  WHERE 
  {
    #  scientific conference series (Q47258130) 
    ?confSeries wdt:P31 wd:Q47258130.
    OPTIONAL { ?confSeries wdt:P1813 ?short_name . }
    BIND (COALESCE(?short_name,?confSeriesLabel) AS ?display_name).
    #  official website (P856) 
    OPTIONAL {
      ?confSeries wdt:P856 ?official_website
    } 
    # any item with a DBLP venue ID 
    OPTIONAL {
      ?confSeries wdt:P8926 ?DBLP_pid.
    }
    # WikiCFP pid 
    optional {
       ?confSeries wdt:P5127 ?WikiCFP_pid.
    }
    # GND pid
    optional {
      ?confSeries wdt:P227 ?GND_pid.
    }
    # label 
    ?confSeries rdfs:label ?confSeriesLabel filter (lang(?confSeriesLabel) = "en").
  }
  ORDER BY (?display_name)
  