Svetoslav Obretenov National Philharmonic Choir
Bulgarian National Choir 'Svetoslav Obretenov'
Bŭlgarska khorova kapela Svetoslav Obretenov
Chœur national bulgare « Svetoslav Obretenov »
Bulgarska Horova Kapela Svetoslav Obretenov
National Library of Israel Names and Subjects Authority File