Матіко, Ф. Д., and Г. Ф. Матіко. 2012. “Model of Gas Leakage from Underground Pipeline on the Basis of Gas-Dynamic Throttle Structure”. METHODS AND DEVICES OF QUALITY CONTROL, no. 1(28) (April):84-90. https://mpky.nung.edu.ua/index.php/mpky/article/view/13.