Ba0.1Sr0.9TiO3-BaTi4O9 composite thin films with improved microwave dielectric properties L. Yan, L. F. Chen, C. Y. Tan, C. K. Ong, Md. Anisur Rahman and T. Osipowicz Eur. Phys. J. B, 41 2 (2004) 201-205 Published online: 12 October 2004 DOI: 10.1140/epjb/e2004-00310-y