Count the different affiliations of the authors of 'GAmera: An Automatic Mutant Generation System for WS-BPEL Compositions'.
How many different affiliations do the authors of 'GAmera: An Automatic Mutant Generation System for WS-BPEL Compositions' have?
SELECT (COUNT(DISTINCT ?answer) AS ?count) WHERE { <https://dblp.org/rec/conf/ecows/Dominguez-JimenezEGM09> <https://dblp.org/rdf/schema#authoredBy> ?x . ?x <https://dblp.org/rdf/schema#primaryAffiliation> ?answer }
<https://dblp.org/rec/conf/ecows/Dominguez-JimenezEGM09>