Mathur, V.K., P.K. Maithy, Ravi Shanker, and Gopendra Kumar. 1997. “Physical, Geochemical and Biological Changes across Precambrian-Cambrian Transition, Northwest Himalaya, India”. Journal of Palaeosciences 46 ((1-2):13-18. https://doi.org/10.54991/jop.1997.1313.