Magnetic birefringence determination of the tilt susceptibility above a smectic A-smectic F phase transition in nonyloxybenzylidene butylaniline C. Rosenblatt et J.T. HoJ. Phys. France, 44 3 (1983) 383-386DOI: https://doi.org/10.1051/jphys:01983004403038300
