Pseudo-lamellar ordering in uniaxial and biaxial lyotropic nematics : a synchrotron X-ray diffraction experiment A.M. Figueiredo Neto, Y. Galerne, A.M. Levelut et L. LiebertJ. Physique Lett., 46 11 (1985) 499-505DOI: https://doi.org/10.1051/jphyslet:019850046011049900