1. ELECTROCHEMICAL DEPOSITION AND DISSOLUTION OF THALLIUM OXIDE (III). Authors: MICHAEL K. NAYRYZBAEV, ANDREY V. BEREZOVSKIYA, YENLIK ZH. USSIPBEKOVA, ANDREY P. KURBATOV, GULZIYA A. SEILKHANOVA.2. DEVELOPMENT OF ELECTROCHEMICAL METHODS FOR PRODUCTION OF PURE THALLIUM. Authors: YENLIK ZH. USSIPBEKOVA, GULZIYA A. SEILKHANOVA, ANDREY V. BEREZOVSKIYA, ANDREY P. KURBATOV, MICHAEL K. NAURYZBAEV.