How many different affiliations do the authors of 'Some new facts about sequential quadratic programming methods employing second derivatives' have?
Count the different affiliations of the authors of 'Some new facts about sequential quadratic programming methods employing second derivatives'.
SELECT (COUNT(DISTINCT ?answer) AS ?count) WHERE { <https://dblp.org/rec/journals/oms/IzmailovS16> <https://dblp.org/rdf/schema#authoredBy> ?x . ?x <https://dblp.org/rdf/schema#primaryAffiliation> ?answer }
<https://dblp.org/rec/journals/oms/IzmailovS16>