Count the different affiliations of the authors of 'The blended e-learning imperative: Strategy and technology that enables collaboration and interaction in distributed elearning'.
How many different affiliations do the authors of 'The blended e-learning imperative: Strategy and technology that enables collaboration and interaction in distributed elearning' have?
SELECT (COUNT(DISTINCT ?answer) AS ?count) WHERE { <https://dblp.org/rec/conf/webnet/Austin01> <https://dblp.org/rdf/schema#authoredBy> ?x . ?x <https://dblp.org/rdf/schema#primaryAffiliation> ?answer }
<https://dblp.org/rec/conf/webnet/Austin01>