#  Count papers per concept

SELECT ?uri (SAMPLE(DISTINCT ?xconcept_name) AS ?concept_name) (COUNT (DISTINCT ?pub) AS ?npub)
WHERE {
  ?uri a skos:Concept .
  ?uri rdfs:label ?xconcept_name .
  ?uri vivo:subjectAreaFor ?pub .
  ?pub a bibo:AcademicArticle .
}
GROUP BY ?uri
ORDER BY DESC(?npub)