Which author published the paper on Aggregation methods and has the name Zenon?
Which author named Chaczko published the paper on Aggregation methods?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/journals/jdcta/MoultonCK09> <https://dblp.org/rdf/schema#authoredBy> ?answer }
<https://dblp.org/rec/journals/jdcta/MoultonCK09>