Копей, В. Б., and І. І. Палійчук. “THE USE OF THE PYTHON PROGRAMMING LANGUAGE TO BUILD A KNOWLEDGE BASE ON ISSUES OF RELIABILITY OF SUCKER ROD PUMPING UNITS”. Oil and Gas Power Engineering, no. 2(15), Nov. 2011, pp. 12-18, https://nge.nung.edu.ua/index.php/nge/article/view/44.