[1]
Tiwari, R., Tripathi, A. and Vijaya 1994. Organic-walled microfossils of doubtful origin in Permian and Triassic sequences on peninsular India. Journal of Palaeosciences. 43, 1-3 (Dec. 1994), 1–38. DOI:https://doi.org/10.54991/jop.1994.1162.