Singh, C. et al. 2012. Allelopathic Effects of <I>Paulownia</I> and Poplar on Wheat and Maize Crops Under Agroforestry Systems in Doon Valley. Indian Forester. 138, 11 (Nov. 2012), 986–990. DOI:https://doi.org/10.36808/if/2012/v138i11/28657.