TY - JOUR AU - Quoc-Son Nguyen TI - Variational principles in the theory of gradient plasticity JO - Comptes Rendus. Mécanique PY - 2011 SP - 743 EP - 750 VL - 339 IS - 12 PB - Elsevier DO - 10.1016/j.crme.2011.08.002 LA - en ID - CRMECA_2011__339_12_743_0 ER -