1. Turnhout , J.V.Thermally Stimulated Discharge Currents in Polymer Electrets, Elsevier : Amsterdam , 542 , 1975 .
2. Creswell , R.A. ; Perlman , M.M. ; Kabayama , M.A.Dielectric Properties of Polymers, Karasz , F.E. , Ed. Plenum : New York , pp. 295 – 312 , 1972 .
3. Thermally stimulated discharge current studies in polarized polypropylene
4. Sekar , R. ; Tripathi , A.K. ; Goel , T.C. ; and Pillai , P.K.C. Thermally stimulated discharge current studies on PMMA: PVAc blends . IEEE Proc. 5th Intl. Sym. of Electrets, held at Castle of Heidelberg , West Germany , Sept. 4–6 , 1985 , 181 .