Statistical properties of focal conic textures in smectic liquid crystals R. Bidaux, N. Boccara, G. Sarma, L. De Seze, P.G. de Gennes et O. ParodiJ. Phys. France, 34 7 (1973) 661-672DOI: https://doi.org/10.1051/jphys:01973003407066100
