Observation of spin glass behavior in Ba0.8La0.2Ti0.8Co0.2O3D.F. Shao, J. Yang, X.B. Zhu, J.M. Dai, Z.R. Yang, W.H. Song and Y.P. SunEur. Phys. J. B, 85 5 (2012) 156DOI: https://doi.org/10.1140/epjb/e2012-20912-x