Institution Institute of Optical Materials and Technologies, Bulg. Academy of Sciences Bulgaria Continue reading Institute of Optical Materials and Technologies, Bulg. Academy of Sciences
Institution St. Cyril and St. Methodius University of Veliko Tarnovo Bulgaria Continue reading St. Cyril and St. Methodius University of Veliko Tarnovo
Institution G. S. RAKOVSKI NATIONAL DEFENSE COLLEGE Bulgaria Continue reading G. S. RAKOVSKI NATIONAL DEFENSE COLLEGE
