Anisotropic colloids through non-trivial buckling C. Quilliet, C. Zoldesi, C. Riera, A. van Blaaderen and A. Imhof Eur. Phys. J. E, 27 1 (2008) 13-20 Published online: 01 August 2008 DOI: 10.1140/epje/i2007-10365-2