When did Vigdís Finnbogadótti receive an award as honorary doctor of the Paris-Sorbonne University?
SELECT ?value WHERE { wd:Q189797 p:P166 ?s . ?s ps:P166 wd:Q42171927 . ?s pq:P585 ?value}
vigdís finnbogadóttir: Q189797 honorary doctor of the paris-sorbonne university: Q42171927