Korol, H. O., and Yu. T. Trush. “THE COMPONENTS ECONOMIC SUBSTANCE OF THE SYSTEMS MAINTENANCE AND REPAIRS OF FIXED ASSETS OF REGIONAL GAS SUPPLY SYSTEM”. Science and Transport Progress , no. 24 (October 25, 2008): 231–236. Accessed May 3, 2024. https://stp.ust.edu.ua/article/view/14653.