X-ray studies of the smectic phase and transitions between reentrant nematic, smectic A1, A and phases in binary mixtures of polar mesogens T. A. Lobko, B. I. Ostrovskii et W. HaaseJ. Phys. II France, 2 5 (1992) 1195-1213DOI: https://doi.org/10.1051/jp2:1992195