In Int. J. Syst. Sci., how many papers has Lin, Yu-Jen published?
How many papers has Lin, Yu-Jen published in Int. J. Syst. Sci.?
SELECT (COUNT(DISTINCT ?answer) AS ?count) WHERE { ?answer <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/97/1819> . ?answer <https://dblp.org/rdf/schema#publishedIn> 'Int. J. Syst. Sci.' }
<https://dblp.org/pid/97/1819>