Гобир, І. Б. 2014. “Modeling of Situational Management of Repair Works at Oil and Gas Producing Enterprises”. Scientific Bulletin of Ivano-Frankivsk National Technical University of Oil and Gas (Series: Economics and Management in the Oil and Gas Industry) 1 (9):19-27. https://eung.nung.edu.ua/index.php/ecom/article/view/186.