%0 Journal Article %A S. Giuffrè %A A. Pratelli %A D. Puglisi %T Radial Solutions and Free Boundary of the Elastic-Plastic Torsion Problem %J Journal of convex analysis %D 2018 %P 529-543 %V 25 %N 2 %U http://geodesic.mathdoc.fr/item/JCA_2018_25_2_JCA_2018_25_2_a10/ %F JCA_2018_25_2_JCA_2018_25_2_a10