2019. The role of hydrocarbon-oxidizing bacteria Acinetobacter pitti. RKB1 and Bacillus sp. RKB2 in the processes of bio-solubilization of brown coal from the Kiyakty coal deposit (Karaganda, Kazakhstan). Eurasian Journal of Ecology. 60, 3 (Sep. 2019), 15–23. DOI:https://doi.org/10.26577/EJE.2019.v60.i3.02.