[1]
S. K. Purkayastha, S. P. Agrawal, R. D. Tandon, and L. Chauhan, “Variation in the Proportion of Heartwood in <I>Eucalyptus tereticornis</I> Sm”., Indian Forester, vol. 106, no. 7, pp. 466–473, Jul. 1980.