Mathur, V.K., P.K. Maithy, Ravi Shanker, and Gopendra Kumar. “Physical, Geochemical and Biological Changes across Precambrian-Cambrian Transition, Northwest Himalaya, India”. Journal of Palaeosciences 46, no. (1-2) (December 31, 1997): 13–18. Accessed May 19, 2024. https://www.jpsonline.co.in/index.php/jop/article/view/1313.