query: SELECT ?person ?personLabel ?dblp ?dob WHERE {
    ?person wdt:P106 ?occupation.
    ?occupation wdt:P279* wd:Q82594.
    OPTIONAL { ?person wdt:P2456 ?dblp. }
    ?person wdt:P569 ?dob.
    SERVICE wikibase:label { bd:serviceParam wikibase:language "en". }
  }
  order by ?dob