1. Antony, M. K. and Unnikrishnan, A. S. On an upwelling front, propagation of upwelling and vertical velocity in the eastern Arabian Sea during Monsoon, 1987. 25–31 August1992. Proceedings of the PORSEC-92 in Okinawa, Conference for Pacific Ocean Environments and Probing, Vol. 1, pp.527–532. Okinawa, Japan
2. Chatfield, C. 1989.The analysis of time series: An introduction, 241London: Chapman & Hall.