Keller, U [Importance of rare earth screens for optimizing radiographic imaging quality]. [electronic resource] - Deutsche zahnarztliche Zeitschrift Jan 1986 - 55-8 p. digital Publication Type: English Abstract; Journal Article ISSN: 0012-1029 Subjects--Topical Terms: Metals, Rare EarthRadiographic Image Enhancement--instrumentationRadiography, DentalX-Ray Intensifying Screens