query: SELECT ?retracted_paper ?retracted_paperLabel ?author_name_string WHERE {
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
    ?retracted_paper wdt:P31 wd:Q45182324.
    OPTIONAL { ?retracted_paper wdt:P2093 ?author_name_string. }
  }
  LIMIT 100000