00723nam0-22002771i-450-990000994460403321000099446FED01000099446(Aleph)000099446FED0100009944620000920d1968----km-y0itay50------baengPhysics of Color CentersEdited by W. Beall FowlerNew YorkAcademic Press1968SuperficiDifetti530.41Fowler,W. Beall46884ITUNINARICAUNIMARCBK99000099446040332132B-0416183FI1FI1Physics of Color Centers354025UNINAING01