[1]
D. Bhardwaj, “1. Miospores in the Coal Seams of the Carboniferous of Great Britain by A. H. V. Smith & M. A. Butterworth 2. The Systematics and Distribution of Permian Miospores by G. F. Hart ”, JPS, vol. 16, no. 1-3, pp. 301–303, Dec. 1967.