R. C. Ghosh, R. P. Singh, and K. K. Sharma, “Standardisation of Nursery Technique of Tropical Pines III. Root Pruning of <I>Pinus patula</I>, Schiede & Deppe Seedlings in Nursery - a Study”, Indian Forester, vol. 100, no. 9, pp. 544–547, Sep. 1974.