π ELECTRON DELOCALIZATION IN POLY-(p-PHENYLENE) ( PPP), POLYPHENYLENE SULFIDE (PPS) AND POLYPHENYLENE OXIDE ( PPO) AND AsF5 DOPING OF PPP
J. Phys. Colloques, 44 C3 (1983) C3-741-C3-744
DOI: 10.1051/jphyscol:19833146