K. Mathai Eldho, Rajamohanan, P. R., Anto, R., Bulakh, N. N., Lele, A. K., and Ajithkumar, T. G., ?Insights into the molecular dynamics in polysulfone polymers from C-13 solid-state NMR experiments?, Journal of Physical Chemistry B, vol. 119, no. 34, pp. 11287-11294, 2015.