Mention the year in which the first papers of the authors of 'On the Gonality of Cartesian Products of Graphs' were published.
When were the first papers of the authors of 'On the Gonality of Cartesian Products of Graphs' published?
SELECT DISTINCT ?answer MIN(xsd:integer(?y)) AS ?y WHERE { <https://dblp.org/rec/journals/combinatorics/AidunM20> <https://dblp.org/rdf/schema#authoredBy> ?answer . ?x <https://dblp.org/rdf/schema#authoredBy> ?answer . ?x <https://dblp.org/rdf/schema#yearOfPublication> ?y }
<https://dblp.org/rec/journals/combinatorics/AidunM20>