Naithani, H. B. “<I>Broussonetia kampferi< I> Sleb. & Zucc, and <I>Rhododendron obtusum< I> (Lindl.) Planch. New to Indian Flora”. Indian Forester, vol. 107, no. 9, Sept. 1981, pp. 585-8, doi:10.36808/if/1981/v107i9/11078.