Quasi-elastic neutron scattering study of a re-entrant side-chain liquid-crystal polyacrylate L. Benguigui, L. Noirez, R. Kahn, P. Keller, M. Lambert and E. Cohen de Lara J. Phys. II France, 1 4 (1991) 451-458 DOI: 10.1051/jp2:1991179