Maksymjuk, S. O., & Karpash, O. M. (2020). The gas-pipelines technical state diagnostics methods diversification in conditions of the natural gas quality estimation system development using the principles of EU. METHODS AND DEVICES OF QUALITY CONTROL, (2(45), 82–89. https://doi.org/10.31471/1993-9981-2020-2(45)-82-89