Question: What is the scientist whose doctoral students are Erich Bagge and erban ieica?
SPARQL:
SELECT DISTINCT ?uri WHERE { ?uri <http://dbpedia.org/ontology/doctoralStudent> <http://dbpedia.org/resource/Erich_Bagge> . ?uri <http://dbpedia.org/ontology/doctoralStudent> <http://dbpedia.org/resource/Șerban_Țițeica> . }