TY - JOUR AU - Sun, Jianzhong TI - An equation for the limit state of a superconductor with pinning sites JO - Electronic Journal of Differential Equations PY - 2005 VL - 2005 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EJDE_2005__2005__a199/ LA - en ID - EJDE_2005__2005__a199 ER -