Do the authors of 'Determining Sector Visibility of a Polygon' have University of British Columbia as their primary affiliation?
Is University of British Columbia the primary affiliation of the authors of 'Determining Sector Visibility of a Polygon'?
ASK { <https://dblp.org/rec/conf/compgeom/BhattacharyaKT89> <https://dblp.org/rdf/schema#authoredBy> ?x . ?x <https://dblp.org/rdf/schema#primaryAffiliation> 'University of British Columbia, Vancouver, Canada' }
<https://dblp.org/rec/conf/compgeom/BhattacharyaKT89>