title: [Criteria for audiovisual communication, projection aids and their preparation (VII)].
mesh_terms: D001296:Audiovisual Aids; D003142:Communication; D004867:Equipment Design; D010781:Photography / Q000295:instrumentation; D013664:Teaching Materials
vernacular_title: Kriterien für die audiovisuelle Kommunikation, projizierbare Hilfsmittel und ihre Herstellung (VII).