P. N. Chatterjee and R. S. Thapa, “Sal Regeneration: the Problem of Sal Seed and Seedling Borer <I>Pammene theristis<I> Meyrick in Dehra Dun Sal Forests (Lepidoptera: Eucosmidae)”, Indian Forester, vol. 96, no. 8, pp. 580–586, Aug. 1970.