query: SELECT DISTINCT ?item (COUNT(?work) as ?count) WHERE
  {
  ?work wdt:P921 ?item ;
        wdt:P50 ?author ;
        wdt:P2860 [ wdt:P50 ?citedauthor ].
    ?item wdt:P625 ?geoloc .
  }
  GROUP BY ?item
  HAVING(?count > 2)
  LIMIT 100