Liutak, I. Z., and Z. P. Liutak. “The Development of Method and Software for Assessing the Technical Condition of a Metal Production Facility Exemplified by the Main Pipeline”. Prospecting and Development of Oil and Gas Fields, no. 2(67), May 2018, pp. 21-26, doi:10.31471/1993-9973-2018-2(67)-21-26.