Internal Friction in Irradiated Polymethylmethacrylate S. N. Goyanes, G. M. Benites, G. H. Rubiolo et A. J. MarzoccaJ. Phys. IV France, 06 C8 (1996) C8-587-C8-590DOI: https://doi.org/10.1051/jp4:19968127