biblio
“Low voltage varistor ceramics based on SnO2”, Bulletin of Materials Science, vol. 30, no. 6, pp. 583-586, 2007.
, “Varistor property of SnO2 center dot CoO center dot Ta2O5 ceramic modified by barium and strontium”, Journal of Alloys and Compounds, vol. 466, no. 1-2, pp. 483-487, 2008.
,