Ramachandra, K., School of Mathematics, Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Bombay-400005, India

• The Journal of the Indian Mathematical Society Volume 61, Issue 1-2, January-June 1995 - Articles
  Simplest, Quickest and Self-Contained Proof that1/2≤θ≤1(θ Being the Least Upper Bound of the Real Parts of the Zeros of ζ(s))
  Abstract