http://AATesaurus.cultura.gencat.cat/aat/getty_enhttp://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31306839digital projection http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31306839 systems by function BT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31306839 film projection systems RT http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31306839 digital cinema projection UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31306839 digital cinema systems UF http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31306839 projection, digital UF