ORIENTATIONAL ORDER IN p-AZOXYANISOLE, p-AZOXYPHENETOLE AND THEIR MIXTURES IN THE NEMATIC PHASE S. CHANDRASEKHAR et N. V. MADHUSUDANA J. Phys. Colloques, 30 C4 (1969) C4-24-C4-27 DOI: 10.1051/jphyscol:1969406