Marchev, Angel, Angel Marchev Jr., Margarita Harizanova, Milcho Mirchev, Matilda Alexandrova, Maya Lambovska, and Vasil Alexandria. 2026. “Title Pages /Vol 2 (2010)”. Vanguard Scientific Instruments in Management 2 (2), 1-9. https://www.vsim-journal.info/index.php?journal=vsim&page=article&op=view&path[]=685.