R. Balasubramanian-and-k and . Ramachandra, Some local convexity theorems for the zeta-function-like analytic functions, Hardy-Ra, manujan J, vol.11, pp.1-12, 1988.
R. Balasubramanian-and-k and . Ramachandra, A lemma in complex function theory-!!, Hardy-Ra, manujan J, vol.12, pp.6-7