Kondrat, R. M., and L. I. Khaidarova. “Influence of the Rate of the Lawful Injection of Nitrogen into a Depleted Gas Reservoir of Circular Shape on the Residual Gas Recovery Ratio”. Prospecting and Development of Oil and Gas Fields, no. 2(67), May 2018, pp. 70-74, doi:10.31471/1993-9973-2018-2(67)-70-74.