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\bibitem{Sharma_etal2002} Sharma, K., Degen, B., Von Wuehlisch, G., \& Singh, N. B. (2002). Allozyme variation in eight natural populations of Pinus roxburghii Sarg. in India. \textit{Silvae Genet.}, \textit{51}(5-6), 246--253.

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