S. Jeyarani, N. Sathiah, and P. Karuppuchamy, “<I>In vivo</I> Enhancement of Nucleopolyhedrovirus Infection in <I>Helicoverpa armigera</I> (Hübner) by the Granulovirus of <I>Spodoptera litura</I> Fabricius”, JBC, vol. 26, no. 3, pp. 234–239, Oct. 2012.