query: SELECT DISTINCT ?item WHERE {
  #  ?item wdt:P18 [] .
  #  ?item wdt:P373 [] .
    ?work wdt:P921 ?item ;
          wdt:P50 ?author ;
          wdt:P2860 ?cited .
    ?cited wdt:P50 ?citedauthor .
    ?work wdt:P921 ?item2 .
    ?work wdt:P50 ?author2 .
    ?item2 wdt:P625 ?geoloc .
    FILTER(?item2 != ?item)
    FILTER(?author2 != ?author)
    ?work2 wdt:P2860 ?work .
    
  }
  LIMIT 100