When was the research paper on Fundus images by University of Calgary, Canada published?
University of Calgary, Canada published a paper on Fundus images in what year?
SELECT DISTINCT ?answer WHERE { <https://dblp.org/rec/conf/ccece/OloumiRE14> <https://dblp.org/rdf/schema#authoredBy> ?x . ?x <https://dblp.org/rdf/schema#primaryAffiliation> 'University of Calgary, Canada' . <https://dblp.org/rec/conf/ccece/OloumiRE14> <https://dblp.org/rdf/schema#yearOfPublication> ?answer }
<https://dblp.org/rec/conf/ccece/OloumiRE14>