1. TOWARDS NEW DOUBLE-BONDED ORGANOPHOSPHORUS DERIVATIVES OF C=P=C=P TYPE. Authors: GABRIELA NEMEŞ, RALUCA ŞEPTELEAN, PETRONELA M. PETRAR, LUMINIŢA SILAGHI-DUMITRESCU, IOAN SILAGHI-DUMITRESCU.2. WOOD FIBERS CHARACTERIZATION BY TGA ANALYSIS. Authors: RALUCA ŞEPTELEAN, ALINA SAPONAR.3. SILICA GEL MODIFIED WITH FUNCTIONALIZED CALIXARENES. PREPARATION AND CHARACTERIZATION. Authors: PETRONELA M. PETRAR, RALUCA ŞEPTELEAN, GABRIELA NEMEŞ.