Decoding of Signal from phase modulated unstable periodic Orbit. - D. R. Kulkarni; R. E. Amritkar (Int. J. Bifurc. Chaos, 2001)

Estimation of Initial Conditions and Secure Communication. - Anil Maybhate; R. E. Amritkar; D. R. Kulkarni (Int. J. Bifurc. Chaos, 2003)