Sa’dullayev Tuymurod Mardullo oglu, Taniyev Mirzohid Khurramovish (2025) “OPERATIONAL CHALLENGES AND PERFORMANCE DEGRADATION PATTERNS IN MODERN WIND ENERGY SYSTEMS: A COMPREHENSIVE ANALYSIS OF GRID INTEGRATION AND MAINTENANCE ISSUES”, Research Focus International Scientific Journal, 4(6), pp. 54–59. Available at: https://refocus.uz/index.php/1/article/view/1674 (Accessed: 21 December 2025).