[1]
Vijaya and Tiwari, R. 1986. Role of spore-pollen species in demarcating the Permo-Triassic boundary in Raniganj Coalfield, West Bengal. Journal of Palaeosciences. 35, (1-3) (Dec. 1986), 242–248. DOI:https://doi.org/10.54991/jop.1986.1538.