Aslam, Mohd., et al. “Variability, Heritability and Genetic Gain in Growth Characteristics of Half-Sib Progenies of Pinus Wallichiana A. B. Jackson Plus Trees in the Kashmir Himalaya, India”. Indian Forester, vol. 140, no. 3, Apr. 2014, pp. 251-9, doi:10.36808/if/2014/v140i3/47439.