How many different affiliations do the authors of 'Extremal dependence of copulas: A tail density approach' have?
Count the different affiliations of the authors of 'Extremal dependence of copulas: A tail density approach'.
SELECT (COUNT(DISTINCT ?answer) AS ?count) WHERE { <https://dblp.org/rec/journals/ma/LiW13> <https://dblp.org/rdf/schema#authoredBy> ?x . ?x <https://dblp.org/rdf/schema#primaryAffiliation> ?answer }
<https://dblp.org/rec/journals/ma/LiW13>