Яцишин, М. М., Юрчишин, В. М. and Процюк, В. Р. (2012) “THE INFORMATIONAL AND CATEGORIAL FORMALIZING OF PROCESS AND OBJECTS OF THE OIL AND GAS SUBJECT DOMAIN”, Oil and Gas Power Engineering, (1(17), pp. 16–27. Available at: https://nge.nung.edu.ua/index.php/nge/article/view/27 (Accessed: 4 April 2025).