Lyotropic ferronematics: Magnetic orientational transition in the discotic phaseV. Berejnov, J.-C. Bacri, V. Cabuil, R. Perzynski and Yu. RaikherEurophys. Lett., 41 5 (1998) 507-512DOI: https://doi.org/10.1209/epl/i1998-00182-9