Nebesniy, A., V. Kotov, O. Svyatenko, D. Filonenko, and A. Khovavko. “ASSESSMENT OF A POSSIBILITY OF QUALITY IMPROVING OF REDUCING GAS BY TWO STAGE NATURAL GAS CONVERSION”. Energy Technologies & Resource Saving, no. 4, Dec. 2019, pp. 43-49, doi:10.33070/etars.4.2019.06.