Washington University in St. Louis published a paper on Sensor networks in what year?
When was the paper on Sensor networks by Washington University in St. Louis published?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/conf/rtss/ShaDHLKP13> <https://dblp.org/rdf/schema#authoredBy> ?x . ?x <https://dblp.org/rdf/schema#primaryAffiliation> 'Washington University in St. Louis, Department of Computer Science and Engineering, MO, USA' . <https://dblp.org/rec/conf/rtss/ShaDHLKP13> <https://dblp.org/rdf/schema#yearOfPublication> ?answer }
<https://dblp.org/rec/conf/rtss/ShaDHLKP13>