Walia, K. K., R. K. Walia, and S. N. Nandal. “Effect of Ultra-Violet Radiation Protectants on Indigenous Isolates of Entomopathogenic Nematodes”. Journal of Biological Control, vol. 22, no. 2, Dec. 2008, pp. 417-24, doi:10.18311/jbc/2008/3779.