Smectic A-Cholesteric liquid crystal phase transition: A density studyE. L. Duarte, A. J. Palangana, R. Itri, A. R. Sampaio and A. A. BarbosaEur. Phys. J. B, 5 4 (1998) 835-838DOI: https://doi.org/10.1007/s100510050509