Find the number of authors of the paper 'Using Wireless Sensor Networks for Vehicles and Pedestrian Movement Tracking'.
How many authors does the publication 'Using Wireless Sensor Networks for Vehicles and Pedestrian Movement Tracking' have?
SELECT ?answer WHERE { <https://dblp.org/rec/conf/tst/LogaRS19> <https://dblp.org/rdf/schema#numberOfCreators> ?answer }
<https://dblp.org/rec/conf/tst/LogaRS19>