How many authors does 'What is the cost of living online?' have?
How many authors does the publication 'What is the cost of living online?' have?
SELECT ?answer WHERE { <https://dblp.org/rec/journals/cacm/Greengard21d> <https://dblp.org/rdf/schema#numberOfCreators> ?answer }
<https://dblp.org/rec/journals/cacm/Greengard21d>