Orientational optical non-linearity near the instability of nematic liquid crystal flow over an inclined plane Yu. S. Chilingaryan, R.S. Hakopyan, N.V. Tabiryan et B. Ya. Zel'dovich J. Phys. France, 45 3 (1984) 413-420 DOI: 10.1051/jphys:01984004503041300