Hexagonal columnar mesophase Dh in a new organometallic disk-like compound A.M. Godquin-Giroud, G. Sigaud, M.F. Achard et F. HardouinJ. Physique Lett., 45 8 (1984) 387-392DOI: https://doi.org/10.1051/jphyslet:01984004508038700