Synchrotron X-ray study of the q-fold quasicrystalline symmetry of the Smectic C Twist Grain Boundary phase (TGBc)P. Barois, F. Heidelbach, L. Navailles, H. T. Nguyen, M. Nobili, M. Petit, R. Pindak and C. RiekelEur. Phys. J. B, 11 3 (1999) 455-462DOI: https://doi.org/10.1007/s100510050956