Kopobayeva, A., Baydauletova, I., Amangeldikyzy, A., Askarova, N. and Blyalova, G. 2024. Nature of ree accumulation in clayey interlayers and coals in Karaganda coal basin. Kompleksnoe Ispolzovanie Mineralnogo Syra = Complex use of mineral resources. 332, 1 (Feb. 2024), 49–61. DOI:https://doi.org/10.31643/2025/6445.04.