Media type: E-Article Title: Structural and optical properties in gadolinium–aluminum–lead-germanate quaternary glasses Contributor: Rada, S.; Culea, E. imprint: Elsevier BV, 2011 Published in: Journal of Non-Crystalline Solids Language: English DOI: 10.1016/j.jnoncrysol.2011.01.017 ISSN: 0022-3093 Keywords: Materials Chemistry ; Condensed Matter Physics ; Ceramics and Composites ; Electronic, Optical and Magnetic Materials Origination: Footnote: