Find the papers written by Oldenburg, Lennart and Jungnickel, T. together.
What are the papers written by Lennart Oldenburg and Tim Jungnickel together?
SELECT DISTINCT ?answer WHERE { ?answer <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/209/7122> . ?answer <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/173/5042> }
<https://dblp.org/pid/209/7122> <https://dblp.org/pid/173/5042>