TY - JOUR AU - De Philippis, Guido TI - Weak notions of jacobian determinant and relaxation JO - ESAIM: Control, Optimisation and Calculus of Variations PY - 2012 SP - 181 EP - 207 VL - 18 IS - 1 PB - EDP-Sciences UR - http://www.numdam.org/articles/10.1051/cocv/2010047/ DO - 10.1051/cocv/2010047 LA - en ID - COCV_2012__18_1_181_0 ER -