“SAVING ELECTRICAL ENERGY BY AUTOMATIZING THE OPERATING MODE OF THE ELECTRIC DRIVE OF THE SHAFT GAS SUPPORTING VENTILATION DEVICE” (2025) Web of Teachers: Inderscience Research, 3(5), pp. 411–417. Available at: https://webofjournals.com/index.php/1/article/view/4499 (Accessed: 3 October 2025).