How many research papers has Zhang, Daqing published?
How many papers has Daqing Zhang published?
SELECT (COUNT(DISTINCT ?answer) AS ?count) WHERE { ?answer <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/83/1359-1> }
<https://dblp.org/pid/83/1359-1>