Frequency-dependent deformation of liquid crystal droplets in an external electric field G. K. Auernhammer, J. Zhao, B. Ullrich and D. Vollmer Eur. Phys. J. E, 30 4 (2009) 387-394 Published online: 09 December 2009 DOI: 10.1140/epje/i2009-10538-y