Lekha, Chander, and Kulwant Rai Sharma. “Healing of Boreholes in <I>Pinus roxburghh< I> Sargent (Chir Pine)”. Indian Forester, vol. 136, no. 3, Mar. 2010, pp. 369-74, doi:10.36808/if/2010/v136i3/3534.