Which papers did Chen, Z. and Ioannis Savidis write together?
Find the papers written by Chen, Z. and Savidis, Ioannis together.
SELECT DISTINCT ?answer WHERE { ?answer <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/37/1439> . ?answer <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/37/3387> }
<https://dblp.org/pid/37/1439> <https://dblp.org/pid/37/3387>