(1)
Mansurova, R. M.; Umbetkaliev, A. K.; Zhylybaev, N. K.; Erezhep, N.; Dosumov, K.; Mansurov, Z. A. Ni-Carbon Mineral Sorbent - Catalyst of Sulfur Dioxide Sorption. Eurasian Chem.-Technol. J. 2001, 3, 119-123.