TY - JOUR T1 - Smectic A: cholesteric phase transition investigated by small angle X-ray diffraction and viscosity measurements JO - Brazilian Journal of Physics A1 - Duarte, E. L. A1 - Itri, R. A1 - Sampaio, A. R. A1 - Simões, M. A1 - Palangana, A. J. SN - 0103-9733 UL - 10.1590/S0103-97332002000300007 VL - 32 Y1 - 2002 PB - Brazil ER -