[1]
N. V. Shpynova, M. P. Sartakov, I. D. Komissarov, and I. V. Grekhova, “Comparative characteristics of thermal stability of humic acids of sapropels of the middle ob region and south of OB-Irtysh Basin of Wstern Siberia”, AmazInv, vol. 7, no. 17, pp. 79–84, Dec. 2018.