Effect of Cu doping at the Mn site on the transport and magnetic behaviors of La2/3Ca1/3MnO3 S. L. Yuan, Z. Y. Li, X. Y. Zeng, G. Q. Zhang, F. Tu, G. Peng, J. Liu, Y. Jiang, Y. P. Yang and C. Q. Tang Eur. Phys. J. B, 20 2 (2001) 177-181 Published online: 15 March 2001 DOI: 10.1007/BF01315688