Marchev, Vasil, Angel Marchev JR, Kaloyan Haralampiev, Alexander Efremov, Boyan Markov, Dimitar Lyubchev, Milena Piryankova, Bogomil Filipov, Daniel Masarliev, and Valentin Mitkov. “Methodological Approaches for Multidimensional Personal Data Creation”. Vanguard Scientific Instruments in Management 20 (February 25, 2025): 108-131. Accessed November 16, 2025. https://vsim-journal.info/index.php?journal=vsim&page=article&op=view&path[]=544.