Naha et al. 1993

Naha K., Srinivasan R., Gopalan K., Pantulu G.V.C., Subba M.V. Rao, Vrevsky A.B. and Bogomolov E.S. The nature of the basement in the Archaean Dharwar craton of southern India and the age of the Peninsular Gneiss // Proc. Indian Acad. Sci. (Earth Planet. Sci.), 1993, vol. 102, No.4, pp. 547-565.