Show the Wikidata ID of the person Barry W. Boehm.
The author Barry W. Boehm is associated with which Wikidata identifier?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/pid/b/BarryWBoehm> <https://dblp.org/rdf/schema#wikidata> ?answer }
<https://dblp.org/pid/b/BarryWBoehm>