Малісевич, В. В., and О. Є. Середюк. “Simulation of Density and Component Composition of Natural Gas Influence at Its Means Accounting Diagnosing”. METHODS AND DEVICES OF QUALITY CONTROL, no. 2(27), Dec. 2011, pp. 56-62, https://mpky.nung.edu.ua/index.php/mpky/article/view/328.