THERMOSTIMULATED CREEP STUDY OF UNDOPED POLYACETYLENE (CH)x FILMS T. Elsayed, J. Elhout, B. François, C. Mathis, D. Chatain et C. Lacabanne J. Phys. Colloques, 44 C3 (1983) C3-131-C3-134 DOI: 10.1051/jphyscol:1983324