query: SELECT ?item ?title ?pages ?authorLabel (COUNT(?citations) AS ?count) WHERE {
    ?item wdt:P31 wd:Q13442814.
    ?item wdt:P1433 wd:Q1919514.
    ?item wdt:P577 ?year.
    ?item wdt:P1476 ?title.
    ?item wdt:P304 ?pages.
    ?item wdt:P50 ?author.
    ?author wdt:P21 wd:Q6581072.
    optional {
      ?item wdt:P2860 ?citations.
    }
    FILTER (year(?year)=2018)
    SERVICE wikibase:label { bd:serviceParam wikibase:language "[AUTO_LANGUAGE],en". }
  } GROUP BY ?item ?title ?pages ?authorLabel