1. STUDIES ON WO3 THIN FILMS PREPARED BY DIP-COATING METHOD. Authors: ECATERINA BICA, LAURA ELENA MUREŞAN, LUCIAN BARBU TUDORAN, EMIL INDREA, IONEL CĂTĂLIN POPESCU, ELISABETH-JEANNE POPOVICI.2. SPECTROSCOPIC AND STRUCTURAL CHARACTERISATION OF SiO2 -Y2O3 BASED MATERIALS WITH LUMINESCENT PROPERTIES. Authors: EMIL INDREA, MARIUS MORAR, ADRIAN-IONUŢ CADIŞ, ECATERINA BICA, ELISABETH-JEANNE POPOVICI, LAURA ELENA MUREŞAN.