1. The Lower Palaeozoic vanadium-bearing basin of the Northern Tienschan and the Western region of Central Kazakhstan;Ankinovitch;Alma-Ata: Akademia Nauk Kazakhskoi SSR,1961
2. Anonymous, 1978. Research on mineral bearing horizons of Lower Cambrian black rock series of Hunan. Hunan Geoscientific Information (4), 17–56 (in Chinese).
3. Anonymous, 1987. Regional Geology of Guizhou Province. Geological Publishing House, Beijing, p. 698 (in Chinese with an English abstract).
4. Determination of rare earth elements in geological samples by inductively coupled plasma-mass spectrometry;Balaram;Journal of Indian Chemical Society,1991
5. Geochemical changes across the Proterozoic–Cambrian transition in the Durmala phosphorite mine section Mussoorie Hills, Garhwal Himalaya, India;Banerjee;Palaeogeography, Palaeoclimatology, Palaeoecology,1997