Which papers did St\u00E9phane R. publish in the last four years?
List the papers published by St\u00E9phane Redon in the last four years.
SELECT DISTINCT ?answer WHERE { ?answer <https://dblp.org/rdf/schema#authoredBy> <https://dblp.org/pid/r/StephaneRedon> . ?answer <https://dblp.org/rdf/schema#yearOfPublication> ?y FILTER(?y > YEAR(NOW())-4) }
<https://dblp.org/pid/r/StephaneRedon>