M. Elisa, B. A. Sava, I. C. Vasiliu, F. Nastase, C. Nastase, A. Volceanov, S. Stoleriu, 2012. Structural and morphological characterization of Pr3+ and Er3+-containing SiO2-P2O5 sol-gel thin films. Mat. Chem. Phys, (131), pp. 647-665, 0254-0584.
M. Elisa, B. A. Sava, I. C. Vasiliu, F. Nastase, C. Nastase, A. Volceanov, S. Stoleriu, 2012. Structural and morphological characterization of Pr3+ and Er3+-containing SiO2-P2O5 sol-gel thin films. Mat. Chem. Phys, (131), pp. 647-665, 0254-0584.