P. A. Maheswaran, V. K. Unny, S. S. Kumar, C. P. Uthaman, and T. P. Kumar, “Mixed Layer Budget Terms on Acoustic Propagation A Study based on the Butterfly Track Experiment in the South Eastern Arabian Sea”, Def. Sc. J., vol. 69, no. 2, pp. 156–162, Mar. 2019.