S. P.  Lonkar, Rana, S., Singh, R. P., Lacoste, J., Gardette, J. Luc, Jestin, F., and Brocord, E., ?Synthesis, characterization, and performance evaluation of polymeric HALS in ethylene-propylene-diene terpolymer (EPDM)?, Journal of Macromolecular Science, Part A: Pure and Applied Chemistry , vol. A42, no. 8, pp. 1037-1046, 2005.