Lupak V. SPECIFIC-SCIENTIFIC APPROACHES TO THE STUDY OF THE PROBLEM OF PSYCHOLOGICAL FEATURES OF MENTAL HEALTH FORMATION IN MILITARY PERSONNEL. PEI [Internet]. 2026 Aug. 31 [cited 2026 Sep. 10];5(3):63-71. Available from: https://intranet.vspu.edu.ua/pei/index.php/journal/article/view/209