%0 Journal Article %T Anomalous temperature effect of nonlinearity of WO3 varistor doped with Al2O3 %A Yu Wang %A Z. Aburas %A Kailun Yao %J Chinese Science Bulletin %@ 1861-9541 %D 1999 %I %R 10.1007/BF03182734 %U http://link.springer.com/article/10.1007/BF03182734