Sharma, Sanjeev, et al. “Variability in Urediniopustule and Urediniospore Size of <I>Melampsora ciliata< I> On Poplar Genotypes”. Indian Forester, vol. 132, no. 12, Dec. 2006, pp. 1620-4, doi:10.36808/if/2006/v132i12/4305.