@Article{ pertom03, author = { Percivale, Danilo and Tomarelli, Franco }, title = { From Special Bounded Deformation to Special Bounded Hessian: The Elastic-Plastic Beam }, journal = { Mathematical Models & Methods in Applied Sciences }, year = { 2005 }, volume = { 15 }, number = { 7 }, pages = { 1009-1058 }, URL = { http://cvgmt.sns.it/paper/1074/ }, note = { cvgmt preprint} }