1. On pendulum-like random walk;Bhat;J. Karnatak Univ. Sci.,1968
2. Oscillating random walk and diffusion process under centripetal force;Bhat;Sankhyā Ser. A,1969
3. Integrability Theorems for Trigonometric Transforms;Boas,1967
4. Stochastic Processes;Doob,1953