9LI Y,TAKADA T.Progress in space charge measurement of solid insulation materials in Japan[J].IEEE Electrical Insulation Magazine.1994,10 (5):1-6-28.
10MAZZANTI G,MONTANARI G C,ALISON J M.A space charge based method for the estimation of apparent mobility and tra Pdepth as markers for insulation degradation theoretical basis and experimental validation[J].IEEE Trans.Diel.& Electr.Insul.,2003,10 (2):187-197.
