Nonlinear electrical properties of cobalt doped SnO2·Ni2O3·Nb2O5 varistorsC. P. Li, J. F. Wang, W. B. Su, H. C. Chen, W. X. Wang, D. X. Zhuang and L. XuEur. Phys. J. AP, 16 1 (2001) 3-9DOI: https://doi.org/10.1051/epjap:2001187
