1. Bartlett, M. S.Stochastic Processes (Cambridge, 1955).
2. Ramakrishnan, Alladi “A physical approach to stochastic processes.” Address at the Indian Academy of Sciences Session, 1955,a. (To be published).
3. —Proc. Kon. Ned. Akad. Wet., 1955b,58, 470.
4. Ramakrishnan, AlladiIbid.,Proc. Kon. Ned. Akad. Wet., 1955c, d (in press).
5. Snyder, H. S. and Scott, W. T.Phys. Rev., 1949,76, 220.