find-cited-cov2-art.rq

SELECT DISTINCT ?citem ?citemLabel
WHERE 
{
  VALUES ?topic { wd:Q908902 wd:Q7202 } 
  ?item wdt:P31 wd:Q13442814.
  ?item p:P921 [ ps:P921 ?topic; pq:P642 wd:Q82069695 ].
  ?item wdt:P2860 ?citem.
  MINUS { 
    VALUES ?topic2 { wd:Q908902 wd:Q7202 } 
    ?citem p:P921 [ ps:P921 ?topic2; pq:P642 wd:Q82069695 ]
  }
  SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
}