Chain segment ordering in lamellar sublayers of block copolymers: A NMR study C. Lorthioir, P. Auroy, B. Deloche and Y. Gallot Eur. Phys. J. E, 7 3 (2002) 261-266 Published online: 15 March 2002 DOI: 10.1140/epje/i200101144