Lopatin, V. V. “ENSURING INTRINSIC SAFETY OF LOW-VOLTAGE MEASURING CIRCUITS IN COAL MINES”. METHODS AND DEVICES OF QUALITY CONTROL, no. 1(46) (June 28, 2021): 103–110. Accessed April 25, 2024. https://mpky.nung.edu.ua/index.php/mpky/article/view/538.