Relaxation dynamics of rubbed polystyrene thin films D. M. G. Agra, A. D. Schwab, J.-H. Kim, S. Kumar and A. Dhinojwala Europhys. Lett., 51 6 (2000) 655-660 Published online: 01 September 2002 DOI: 10.1209/epl/i2000-00388-9