YEFREMOV, S.; NECHIPURENKO, S.; ATCHABAROVA, A.; KABULOV, A.; NAURYZBAYEV, M. Obtaining carbon-mineral sorbents based on shungite and using them to clean waste and household water. Chemical Bulletin of Kazakh National University, v. 64, n. 4, p. 85-88, 1 dez. 2011.