S. D. Kakade, M. V. Vaidya, D. G. Khangaonkar, P. K. Divekar, U. B. Kadam, and S. N. Asthana, “Polyurethane Based Inhibition for High Flame Temperature Nitramine Based Composite Modified Double Base propellant”, Def. Sc. J., vol. 48, no. 4, pp. 371–377, Jan. 2013.