Ultrasonic shear and 'capillary viscosity study of 4-cyano-4'-n-heptylbiphenyl in the nematic and the isotropic state S.D. Hunnisett et J.C.A. van der Sluijs J. Physique Lett., 44 2 (1983) 59-63 DOI: 10.1051/jphyslet:0198300440205900