Mention the author who has published the most papers among the authors of 'Logic between Expressivity and Complexity'.
Who has published the most papers among the authors of 'Logic between Expressivity and Complexity'?
SELECT (GROUP_CONCAT(?answer; separator=', ') AS ?answer) ?count WHERE { SELECT DISTINCT ?answer (COUNT(?x) AS ?count) WHERE { <https://dblp.org/rec/conf/cade/Benthem10> <https://dblp.org/rdf/schema#authoredBy> ?answer . ?x <https://dblp.org/rdf/schema#authoredBy> ?answer } GROUP BY ?answer } ORDER BY DESC(?count) LIMIT 1
<https://dblp.org/rec/conf/cade/Benthem10>