Name the author who published the paper on Control systems and has the name Xi.
Which author published the paper on Control systems and has the name Xi?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/journals/corr/abs-2002-07987> <https://dblp.org/rdf/schema#authoredBy> ?answer }
<https://dblp.org/rec/journals/corr/abs-2002-07987>