1. ELECTROCHEMICAL CHARACTERIZATION OF SANDWICH-TYPE PHOSPHOTUNGSTOCERATE (IV) AND ARSENOTUNGSTOCERATE (IV) IN AQUEOUS AND NON-AQUEOUS SOLUTION. Authors: ADRIAN-RAUL TOMŞA, AGLAIA KOUTSODIMOU, POLYCARPOS FALARAS, MARIANA RUSU.2. SYNTHESIS AND CHARACTERIZATION OF A SANDWICH-TYPE CERIUM (IV) COMPLEX DERIVED FROM MONOLACUNARY DAWSON 2-MOLYBDO-15-TUNGSTO-2-PHOSPHATE. Authors: VIOLETA PAŞCALĂU, MARIANA RUSU, LAURA MUREŞAN, DANIELA CIOLOBOC, ANA-MARIA TODEA, ADRIAN-RAUL TOMŞA.3. SYNTHESIS, SPECTROSCOPIC AND ELECTROCHEMICAL CHARACTERIZATION OF A NEW CHROMIUM (III) SUBSTITUTED DAWSON POLYOXOMETALATE. Authors: ADRIAN-RAUL TOMŞA, ANA-MARIA TODEA, RADU SILAGHI-DUMITRESCU, GRIGORE DAMIAN, MARIANA RUSU.