Neutron reflectivity study of end-adsorbed diblock copolymers : cross-over from nushrooms to brushes J. B. Field, C. Toprakcioglu, L. Dai, G. Hadziioannou, G. Smith et W. Hamilton J. Phys. II France, 2 12 (1992) 2221-2235 DOI: 10.1051/jp2:1992262