ELECTRON SPIN RESONANCE STUDIES OF MAGNETIC DEFECTS IN FeCl3-DOPED POLYPARAPHENYLENE (p-C6H4) x P. Kuivalainen, H. Stubb, P. Raatikainen and C. Holmström J. Phys. Colloques, 44 C3 (1983) C3-757-C3-760 DOI: 10.1051/jphyscol:19833150