Sharma, B. K., Verma, V. P. S. and Jain, P. P. (1979) “Introduction of an Exotic Strain of <I>Valeriana officinalis</I> Linn. (from U.S.S.R.) for its Cultivation and Exploitation in Chakrata Hills, Distt. Dehra Dun, India”, Indian Forester, 105(3), pp. 211–216. doi: 10.36808/if/1979/v105i3/11313.